Vacuum cleaner won't start

[LONDONER]

A retired guy sits around the house all day, so one day his wife says,“Ed, you could do something useful, like vacuum the house once a week."

Ed gives it a moment’s thought and says: “Sure! Why not.Where’s the vacuum ?" Half an hour later, Ed comes into the kitchen to get some coffee.

His wife says, “I didn't hear the vacuum running: I thought you were going to do the vacuuming ?” Exasperated, Ed answers, “The stupid thing is broken: it won't start. We need to buy a new one.”

Really ?” she says, “show me -- it worked fine the last time.” So he shows her.