In January I told my salespeople if they exceeded their quota by 33% I'd dye my hair the color of their choice. It was an incredible long shot. A totally safe bet. About mid-March their confidence was such that I finally decided to tell my wife about this great idea.
"You promised what?"
"Well it was a long shot honey. They've never ..."
"Have you lost your mind. Dress silly. Do anything. But don't screw up your hair!"
Then I got a series of lectures about hair chemistry and sure enough I learned alot.