not if you jump into something soft. it's like a waterslide.
one of my friends had a run-in with fiberglass (he pooped at the dump, his brother told him it was cotton and that he could wipe, he went to the hospital for a while) I can't see that stuff without thinking about it.
one time we found a dildo out behind a night club. a friend of ours had to go to the bathroom so we ran away when he was in there. when he came out we and his bike were gone, when he got to his house and opened the door, we threw the dildo at him. i cant see a dildo without thinking of that. though, its not that often...
http://www.eagle-wi.gov/files/garbage%20can%202.jpg