Excuses not to go to school prom?

Just don't go. Heck, I'm not going to my prom this year, a choice I made in my freshman year of high school. If you don't like dancing or interacting with people, like me, then don't go! Just skip town the weekend of your prom and don't tell anyone where you're going. That's what I'm doing at least.

Except he's already committed to going with a specific girl.
It was a matter of 'if you dont want to, dont go' up until he did that.

Now it's not only his night his decision impacts.