My wife has a tendency to go off on random tangents sometimes.
In her atypical fashion, she decided that we both needed to get fit, so off we went on a backpacking holiday.
After eight days on a series of trails in the wilderness, my wife and I both started to look a little rough around the edges.
One morning, she came to breakfast in a baseball cap, her shoulder-length hair sticking out at odd angles.
"Darling," she said, "does my hair make me look like a cow?"
I thought for a moment, then said: "If I tell you the truth, do you promise not to charge?"