WORLDGUARD-4117 - Reported by comonier.1

could add on-PistonExtend, on-PistonRetract on blacklist events =]

on-break When the matched block is being mined
on-destroy-with When the matched item or block is being held by the player during mining
on-place When the matched block is being placed
on-use When an item in the player’s inventory is used
on-interact When a player interacts (i.e. right click) with the matched block (door, lever, etc.)
on-drop When the player drops the matched item
on-acquire When the player acquires the matched item
on-dispense When a dispenser dispenses the matched item