Well, I can't top the leaving someone stranded in another country without money and ID story (sorry, but

) but here are mine.
and yeah...I'm worried about the Tag Fairy bait factor, too, but hey - he/she/it missed the Fart Thread, so maybe this will be safe.
Coming home from work one night, I was listening to a good song on the radio. I had it up pretty loud and turned into my garage and stepped on the gas to drive inside in time with the beat. Only the beat wasn't in time with my turn and I drove into the side of my house. Got to pay the deductable on the car AND the homeowner's insurance.
Now for DH's car stupid car story. On DD1's first Easter, we had 20 million things to do and nothing was going right. She was only 6 months old and I had bought her Easter dress before she was even born. I was so excited for her to wear it. Well, wouldn't you know, she spit up all over it as we were walking out the door. We had to go to church in separate cars as I had to go straight to work from church. So I cleaned up DD as fast as I could, put her in my car, and we were off. DH was right behind me. Or so I thought. When he didn't catch up to me, I pulled over and waited for him. Finally I went back to the house. In his rush to leave (he cannot STAND to be late for anything, and he COULDN'T be late that morning, as he does the sound for our church and we were doing a big musical drama for Easter!) he had cut too close coming out of the garage and hit his mirror on the side. Okay, not good, but why is he still here? He bent the railing of the garage door so it couldn't close, and the door from the garage into the house didn't lock.

The only way to lock the house was to close the garage door. So he's desperately trying to unbend the railing with a pair of pliers trying to get the door to shut so we can leave. I try to tell him it would be okay to leave it up "just this once" but we lived in Birmingham then (not in an unsafe area, but not the kind of place where you leave your house unlocked either) and DH wouldn't hear of it. Our home owner's insurance has a clause that if we leave the house unlocked, we're not convered for theft!

So, there we were, late for church, with a crying baby, trying to make repairs to our garage. Believe it or not, the day only got worse from there!
Laurie