What do you do if your girlfriend starts smoking?
Stop and apply lubrication.
I walked into a room full of men masturbating. They all looked shocked when I didn't stop.
An infinite number of mathematicians walk into a bar. The first one orders a beer. The second one orders half a beer. The third one orders a fourth of a beer. The bartender stops them, pours two beers, and says, "You guys should know your limits."