A young woman walked up to the information desk in a hospital and asked to see the "upturn". "I think you mean the 'intern', don't you?" asked the nurse on duty. "Yes," said the girl. "I want to have a contamination." "You mean 'examination,'" the nurse corrected her.
"Well I want to go to the fraternity ward, anyway." "I'm sure you mean the maternity ward." To which the girl replied: "Upturn, intern; contamination, examination; fraternity, maternity... what's the difference? All I know is I haven't demonstrated in two months and I think I'm stagnant.