This even hurt me...

From Parents magazine

"The toliet-seat cover slammed down on my son's penis." Heather Miller's 2 year old son Lucah had just learned to use the potty and liked to stand. One morning he went to the bathroom on his own and seconds later Miller heard the toilet slamming and a scream-the lid had fallen and crushed his penis against the seat. Blood was squirting out his urethra so Miller took him to the ER, where he had to stay until he could urinate. "His penis was extremely swollen ans so bruised it turned black. We had to push fluids for the next 24 hours because otherwise the blood would clot and block his urethra, making it painful to pee, " says the mom from Loveland, CO. " he still stands but now I go with him."