A mother-in-law visits her son-in-law before leaving for a trip. They are sipping coffee and chatting. Suddenly, the mother-in-law looks at the clock and jumps off her chair exclaiming, "It's already 3 pm! I'm about to miss my train!"

She begins to put her coat on in a hurry. At this moment the son-in-law's six-year-old daughter runs up to her and before her dad can do anything, she says, "Don't hurry Granny, Daddy set the clock two hours ahead."