R22 Key out auto
I seem to remember during my helicopter training twenty years ago a tale (which I think is true) that an instructor had the habit of turning off the engine and throwing the key on the floor, one way of entering an auto !!!!
I think it was an R22, in the States, or the UK.
Last time he did it the key was discovered on the floor of the wrecked helicopter.
Couldn't find it on a Google search, but I'm sure someone else will have been told about it.
During my training a few instructors had a habit of pulling the C.B's