Over the summer I've been practicing driving with Moe, my 16 year-old son. Part of this involves teaching him to fill up the car with gas.
After watching him fumble around trying to open up the gas cap while already holding the fuel nozzle the previous time, I thought I would remind him this time what to do.
Moe: (Gets out of the car and moves to the pump)
Me: (Gets out on the other side of the car): OK, what did we learn last time?
Moe: (Blank stare)
Me: Take off the cap first.
Moe: (Confused, blank stare)
Moe: (Takes off his hat and lays it on the roof of the car)