What's the worst thing you can recall doing during your childhood, in terms of how reckless it was, how angry it made you parents, and how badly they disciplined you?

Mine was probably a tossup at age 6 when me and my sister and our friends went and stole the kiddie pool out of the yard of some kid we didn't like and the cops ended up getting called over it, or the time when I prank called 911 and the fire department and police showed up, also at age 6.