The husband comes into the shower, while his wife had just finished washing. They heard the doorbell . The wife quickly wraps herself in a towel and runs downstairs. At the threshold is neighbor Bob. Just seeing it, Bob says, "I'll give you $ 800 if you drop that towel." After thinking for a moment, the woman and stands naked in front of Bob. Bob hands her $ 800 and leaves. Woman wraps back towel and goes back upstairs. "Who was it? "asks the husband." Bob, the neighbor, "replied the wife." Fine, says the husband - he did not say anything about the $ 800 he owes me? "