He made a boo-boo!

Uh-oh! This poor little toddler shouldn't have gone out to play in his favorite new shorts. After taking a nasty tumble on the pavement, he discovered a torn hole in the seat. Now his mother has to take him inside the house and change his pants. And even worse, she neglected to put pull-ups on him in case he had a "more familiar accident".
I'll bet you're wondering who's to blame for the incident?

The lineart for this embarrassing scene can be found here: illust/80658014
The coloring and background were done by me.