jackol
You jerk it off like you're trying to win a bet and your hand is the only thing standing between you and shame.
My mom caught me doing this in the hallway and I had to explain why I had a face like a tomato.
I did it in the car and the driver turned on the radio just to make me feel worse.
I did it in the school bathroom and the kid next to me started crying because he had no idea what was happening.