If the parents aren't going to do the job (and I'd say by the behavior of this child they AREN'T), someone needs to care enough to step in and try to set him straight...and better that it be a relative who cares than a stranger.
This is willful and criminal distruction of property. If a stranger did this, you'd call the police. Why not now? I'm telling you, a kid that will do this while having adults around certainly is headed for worse....swift and direct consequences are needed. If taking away all of his electronics and tv, etc. is the standard punishment and this is the result, that's not working....time to scare the kid straight.
My husband had two brothers....he was the oldest, there was a middle brother, and a younger brother. My mother in law was very strict on my husband and the middle brother, middle brother ended up committing suicide (got himself in a situation he thought he couldn't get out of). As a result mother in law took the exact opposit approach with the younger brother....let him get away with anything because she was afraid he'd kill himself if she didn't...he knew it and used it to maniulate her...that brother is a drug addict and an alcoholic. He's been in and out of jail more times than I can count. She's now raising his son, who also has anger issues and is getting into a lot of trouble. She baby's him because mom and dad pretty much abandoned him. If she doesn't do something soon, he'll be headed the same path his dad is on.
If the PARENTS aren't going to do what needs to be done, then someone should. The police don't mind stepping in (as long as the family follows through, otherwise don't waste their time). They'd rather deal with him now and give him a good lesson to remember, than have to deal with him later when he's a well known member of the system.
When I was a kid growing up, if I were to do what this kid did my parents would have:
- Beat my rear so hard I wouldn't sit for a week (and yes, with the switch I had to pick out)
- Made me personally apologize and CLEAN UP THE MESS
- Made me PAY for the damages - and do work to earn the money to do so
- Taken away ALL of my priveladges for a VERY LONG TIME.
Parents today don't do this...they're more interested in being friends with their kids than being a parent.
It's not high and mighty to suggest calling the police when someone has caused willful and criminal distruction of property...family or not. The kid needs to know this won't be tolerated. Period. And he needs to be taught that now, before his behavior progresses to the next level. I agree with the OP, guarantee the kid gets christmas and birthday, and I'll even guarantee that you pay to replace your own tank.