Ed has been retired for years. One day his wife says "You know, this place would be cleaner if you helped out sometimes. Maybe do some vacuuming." Ed is bored anyway so he agrees and heads into the living room. Half an hour later, he comes in to get some coffee. The wife says it's been pretty quiet in there. Ed says "The vacuum is broken. We need to get a new one." She thinks for a minute and then says "It worked for me last time. Show me." So he did.