BetterTouchTool stops running. How to Kill all processes

I have issues where once in a while with BetterTouchTool where it just stops running and under the Activity Monitor I see that it says "Not Responding" in red letters. What do you all do when trying to handle this? I try to kill it from Activity but there is a "BetterTouchProcessPrioWatcher" that is running under Root that will fight me back and won't die!