How to avoid going to a party
If you're one of the antisocial types, (I'm looking at YOU, Mothra!)
you could always avoid parties! Here are a few good reasons:

You have homework.

You need to take a shower.

You decided to tell that cute little monkey in the corner that you need it to clip your toenails. As is only expected, it whacks you over
the head with a stuffed yak.

Your Naruto fandom is being wiped out by Hitler, who is rather bored of that one war. What was it called?

You are an emo, for emo's aren't allowed to go to parties.

You are a chickenshit, in which case you may go and wave your sandy little butthole in front of a grue.

The host is a chicken shit, in which case he can rape your mom.
Your face is currently on fire.

A rabbit has invaded your fortress of doom, and you need some time to fix the problem.

You have a massive erection.

Your mum has a massive erection.

You finally found your old Yu-Gi-Oh cards, and really want to play with yourself. With the cards. With the cards by yourself.

A group of evil looking monkeys are walking past your front garden.

The Pope has just dropped by for a cup of tea.

You're in the middle of an orgasm.

Just scream and run.

Aunt Flow is in town.