Can't remember if we've had this one before but it made me laugh...
My husband, being unhappy with my mood swings, bought me a mood ring
the other day so he would be able to monitor my moods.
We've discovered that when I'm in a good mood, it turns green. When
I'm in a bad mood, it leaves a big bloody great big red mark on his
forehead. Maybe next time he'll buy me a diamond.