Side note just to clear it up regarding leaving with the pax bag still in the hold (in Aus at least). If the pax voluntarily leaves a flight or no shows their bag must be removed as it could have been checked in for sinister purposes.
However, If the passenger is involuntarily removed (and therefore had no way of knowing they would be removed and would have travelled on the aircraft with the bag in hold) The bag can actually fly, as they had no way of knowing that they would not be on the flight. This is going back to DJ policy a few years ago, but I'm not aware of it being changed.
So check a bag of C4 go to the Airline lounge drink some free booze for an hour, leave the lounge and board the plane early.
Part way through boarding ask the hostie if she will join you in the mile high club a bit later on!
I expect that gets a involuntary de-boarding and a result the passenger wanted! but not enough to be arrested if he offloads with no fuss. A good policy!