The reason that you could not duplicate the problem is because you probably had the car completely stopped before moving to/from the park position. She is not ensuring that the car is fully stopped.
'88 300E 5 speed manual, 331K miles
"Change oil hot and change oil often"
“I'd like to know why well-educated idiots keep apologizing for lazy and complaining people who think the world owes them a living.” - John Wayne