Many years ago (Like 1999 or 98) I was playing under a glass table and it was broken by a broom, the table broke and a piece of glass cut down my arm causing it to bleed, alot. It was wrapped up in toilet paper and medical tape and then my friends came over and asked "Why is there toilet paper on your arm?" then the memory ends.
If that's not the oldest one than its when the fridge was open and I seen watermelon.
If that's not it than its the one where we through out the plastic hallway carpet cover in an old trailer we had.
^ All of the above happened in the same place, a trailer park that is now a play park. Or another trailer park.. Not sure. All I know is it was a trailer park and the homes were nice and I was small.