I read a piece last night wherein someone did exactly that - sliced the heads of all the drums in one area. The story went on to say that one of the drummers then “petitioned” the group at large for funds to replace the vandalized stuff and was turned down (he was asking $8000!).
I thought it hilarious for two reasons - 1. that the agitators vandalized each others crap, and 2. that the guy would place such a premium on a bunch of plastic buckets.