This is not so much what is said but what is done....
I don't have a turbo timer setup so normally after a run I just sit in the car and listen to a minute or so of a CD before turning the engine off. I've got a friend that I go out with often so she knows the routine when we get to wherever we are going. Anywho, one night we went out in her car (Ford XR thingy), she parked up and we sat there with the engine running for about 15 seconds before I looked at her puzzled and said "Are you letting your turbo wind down?!" We both absolutely lost it!