Electric Meter Tampering

[Uwe K.]

Anybody had this happen yet in a rental?
Just today discovered in one of my duplexes that the upstairs meter had been tampered with . In fact, it was removed from the box, and the connection was shorted with TV cable wire! At least they took two parallel to get some more juice through. You have to see the positive side... There were burn marks noticeable and the meter box was pried open.
Tenant admitted she had someone do it for her, still had the meter, but it had been tampered with, as well. Service was off already, and utility company fixed it right away.

So far they are paying the rent (no utilities, though, I suppose), but I was wondering what your process is.
Should I give a 5-day cure or quit regarding a lease violation? Can't think of anything official to do else.
They are certainly damaging my property, although the gas man banged it back together and said the tenant will be billed for the meter. No financial damage for me.
Secondly they are kind of endangering the property and life. Kids stick their fingers everywhere, and an open meter box is interesting. Fire hazard and burning down the building is optional.