hehe last year at school i made a little robot model for physical science.. and it was kind of coming apart and i needed a screw. so i was looking around and there was this girl named marcy in my class who had a wheelchair. she was outside on crutches, and so i took a screw off one of the wheels on her wheelchair. later after school i saw her wheeling around and all of a sudden one of her wheels flies off, and she fell on the ground screaming. oops.