A visitor to a mental institution asks the director how they decided which patients should be kept in.
The director replies, “We fill up a bath and then offer the patient the choice of a teaspoon, teacup or a bucket and ask them to empty the bathtub.”
The visitor then says, “Oh, I see – a normal person would choose the bucket because it’s the biggest.”
The director responds, “No, a normal person would pull the plug out. Would you like a bed near the window?”