In 1862, Harry Tap invented a device that he hoped...  ...ap invented a device that he hoped would calm his nagging wife. He built six of them, one of which survive...

Only five days? That's all? Wives spend 7,920...  ...That's all? Wives spend 7,920 minutes a year nagging their husbands about household chores, their drin...  ...Alamy | Previously: Psychologists Found Out That Nagging Doesn't Work (Duh!)