What is an effective excuse to skip school?

why? don't skip school, you need to learn. By 13 year old.

WRONG

rather say:

going to school is forced labour.

forced labour is slavery.

slavery is FORBIDDEN!

Uh okay answer before me...

If you can make fake throw up and fake being sick.

Or, if you (like me :P) get good grades (the triple G) and show up to school often say "I've been working extra hard lately, and I haven't missed very many days. May I please skip just this day? We aren't doing anything important today in school. Please just this one time?" Even if you don't get good grade (the triple G) you can say you'll try even harder. Don't worry you don't actually have to try hard unless you want too of course. Good luck!