Math test

A local news reporter was interviewing the head of the state mental hospital and asked how they determine if someone should be institutionalized.

"We have a simple test," the official explained. "In that room we have a bathtub full of water and next to the tub are a pitcher, a coffee mug, and a shot glass. We ask the potential inmate what is the best way to empty the tub."

"Oh, I see. Someone might pick the shot glass or possibly the mug as they are easy to handle instead of the heavier pitcher. I personally would go with the mug."

"Sorry," said the official. "A rational person would pull out the plug. Would you like your bed to be near a window?"