a journalist to a doctor of a mental hospital:

“how do you determine whether to admit a patient or not?”

doctor: “well, we first fill a bathtub with water till the top. then give a teaspoon,

a glass & a bucket to the patient & ask him / her to empty the bathtub.”

journalist: “obviously a normal person would use a bucket because it’s bigger!”

doctor: “no you stupid, a normal person would pull the drain plug!