TheShoe Loc: Lacey, WA

Way back in the 1960s I was sharing rides with a friend who had a small European car. One evening we got in his car and he started it. He broke out laughing. He had used his desk key in the ignition. The two keys were identical.

Jimmy T Loc: Virginia

I will just add, Me Too!!!
Smile,
JimmyT Sends

jeep_daddy Loc: Prescott AZ

I did that when I returned to my apartment one time. I walked up the stairs, turned the knob, walked in, it was dark in there so I couldn't see that it wasn't my apartment, but as soon as I took a couple of steps in I heard a female voice say in a frantic voice, "who's there?" "who's there?" and I was stunned. So I said "SORRY! WRONG APARTMENT!" and promptly locked her door for her and headed back down the stairs. I counted the number of apartments over from the end one and discovered that my count was off. I was the next stair case over from the freaked out lady's apartment. Crap! They all looked exactly the same. It didn't help that I'd had a few drinks that night.

Fogman Loc: Fields Landing, California

My daily driver is a 2008 white Ranger with a bright yellow utility rack. It's always easy to find and never mistaken by someone else. That rack used to live on my white 1987 Ranger and before that a red 1976 Toyota. You can't miss a yellow rack. "By the way, when I got home from the dealership after buying the 2008 Ranger I threw the fob into a desk drawer where it still lives unused to this day.

bobbyjohn Loc: Dallas, TX

That happened to a Dallas female police officer, who after finishing her shift, and still in uniform, mistakenly entered the apartment of another person, on a different floor, thinking it was her apartment, and fatally shot the resident thinking he was an intruder. Sadly, the officer was convicted of murder and is now in prison. IMO, a miscarriage of justice, as it appeared to be an honest but terrible mistake/tragedy.

bobgl205 Loc: Frederick Maryland

After a concert, my wife and I were in parking deck elevator with a group of people. In the front of the elevator a couple would press the next floor if the button was not already lit and when the door opened, they would step halfway out and press their car fob a few times. Hearing nothing they would step back in. Our car was on the top floor so we watched with amusement until they finally got a response on the next to last stop. They were lucky that their car was in range of the elevator door.
To their credit, they apologized as others got off and never began the "I thought you knew where we parked" discussion until they were off the elevator.
I sympathized because I know it is just a matter of time for me.

mountain51

Had a similar situation in the 90's. I was in Home Depot and came out with an arm full of stuff. Got to my blue/purple 1996 Ford Explorer. I'm sure everyone remembers the Blue that looked purple. I slipped the key into the lock and it wouldn't turn so I put my items down and tried it again. After about 30 seconds of not being able to get it unlocked the window lowered. The windows were just tinted enough I didn't see the owner inside.
Beyond him was a van and my Explorer was beyond that. Definitely embarrassing.

John Hicks Loc: Sible Hedinham North Essex England

Many years ago had a Vauxhall Victor saloon car did some shopping for back to the car unlocked it got in and started the car looked at the seat and thought I'd wrong my has a bench seat and this car has bucket seats.
Turned off the engine for out of the car and locked it and saw my car three cars in front of the one I had got in.

robertjerl Loc: Corona, California

Hey, one morning I went searching through my desk for a broad tipped calligraphy pen to do a sign for the classroom door. On the third drawer I wondered why one hand wasn't working so well. Seems I found the pen in the second drawer while distracted answering a student's question about the day's work, picked it up and just kept searching on autopilot. The one hand wasn't working well because I was holding the pen I was searching for.
It was a Thursday, I had a mild cold and had come in anyway. So I immediately wrote out a lesson plan for Friday, went over and reproduced work sheets at lunch and went by the cafeteria where I met and arranged for one of my favorite subs to cover my class Friday. Then I spent a 3 day weekend mostly in bed taking cold medicine and reading. Monday I felt great.

robertjerl Loc: Corona, California

I did that. The School District sent me to a special In-Service at a small college in West LA I had never been to, and haven't gone back. Parking was a huge 5 or 6 story parking garage. I was running late and just kept driving up ramps until I found and empty space, rode the elevator down and made it to the room where the class was with 2 minutes to spare. They served lunch to us so I didn't leave the room all day (bathrooms were next door with a connecting door). Class ended and I went to the parking garage and realized I didn't know which floor my car was on, dark blue mini-van and the lights in that parking garage were very dim. My alarm remote had about a 20 yard max range and that garage was about one block square with three elevator on a side-didn't remember which elevator I used either. I knew I wasn't on the ground floor so I walked the ramps and aisles pressing my remote until on the 4th floor my minivan beeped at me and flashed its lights. I had to do that 3 times getting closer each time because I found my dark blue minivan parked in the middle of what was now a half row of all dark colored over size passenger shuttle vans owned by the college. I couldn't even see my van until I was passing the large van to one side of it. It looked like I was parked in a tunnel between those two over size shuttle vans.

10MPlayer Loc: California

Funny. Two stories:

1. I drove a silver 2001 Dodge Dakota pickup which looks a lot like a Toyota TRD. More than once I came out of work and did exactly what the OP did. Walked up to the truck and tried to get in only to realize it wasn't my truck. Good thing nobody saw me. It would have been embarrassing.

2. Another time I was in the same Dodge Dakota pickup, sitting inside waiting for my wife who went into Target or some place similar. A woman I didn't know walked up, opened the door of my truck and sat down beside me. I looked up and said "Hello". I was laughing. I don't know why. Turns out her husband, an old grayhair like me, has a similar silver pickup and he was waiting nearby. It was embarrassing for her. Funny for me.

-edit- just remembered another embarrassing car story.

This was back in the early 80s so I can't blame old age and fading memory. I was only 30.

I worked at a small store in a small college town. Every day I had to take the cash to the bank and make a deposit. Being aware of security, I changed my routine from one day to the next. The bank was only two blocks away. Some days I walked to the bank. Other days I took my car. I varied my route and the time of day.

One afternoon I finished work and went to the parking lot only to find my car was missing. I freaked out. I called the local PD and reported it missing. I asked all my employees if they had seen anything. One of them remembered that I had driven to the bank. Then slowly, a light went on. I had driven the deposit to the bank but had run into that employee, whose mom worked at the bank, got busy talking to him and walked with him back to the store. We went over to the bank and there was my car, still sitting in the bank parking lot. Doh! Needless to say I was feeling a little bit humiliated. But I was glad my car hadn't been stolen. Doh!

TreborLow

Back in the '60s my friend's grandfather had a snazzy '55 Buick. Went into a bank in NYC, and when he came out, his car was gone. Went back into the bank to call the police and when he went out to meet them, his car was back, so he got in and drove home. On the way, he was arrested for driving a stolen car. It seems the bank was on a corner with two different entrances. It took a while to explain to the police, but they in turn explained that stolen car reports went out immediately, while recovered car reports didn't. We all got a good laugh on that one.

MrT Loc: Gilbert, AZ

I had an issue kind-of like that many years ago. I went for a run in Santa Monica and came back to my maroon Honda Civic. Key opened the door but the seat was in the wrong spot. Started the car up and the radio came on but it wasn't the right channel. Got out and looked around, about 10 cars farther down the street I see another maroon Honda Civic. That one was on the right radio station. So I took it.....

John Hicks Loc: Sible Hedinham North Essex England

I was patterned the bank waiting for my wife to come back to the car when a woman got in the passenger door demanding what was I doing in their car.
She would not believe that it was my car and insisted on staying in the car even when my wife came back.

I had to phone for the police and then they could the car was registered to me she did not apologise at all just got out saying she was not sure, luckily the police took her home and I never heard any more.