 SYNC: When Patrick Bateman drops the chainsaw from the top floor to  hit Christie, the sound coming from the chainsaw is that of a  chainsaw with the trigger depressed and the throttle engaged.  However, at the moment he let go of the chainsaw, the throttle  trigger would have been released. This would have deactivated the  saw and one would only hear the saw idling. Instead, we hear the  chainsaw at full