What is the absolute worst rule you've broken?

Hm
Let's see. I once looked up all the answers for a take home algebra test.

i um got angry and ended up ripping off a (already loose) door off the stall and it slammed into a mirror a while back at school

Uhhhh, well ive stolen about $120 worth of cash and things from stores/people in the past couple months does that count

I snuck out with my friend, David at midnight, and stayed out till 6:00 am.

Giving my opinion on anything to people on the internet.

I eat candy and lost a tooth after worth