The other day I went through a drive through coffee stand, when the girl handed me the coffee I went to put it in the cup holder and the lid popped off and mexican mocha went everywhere:thumbsup. Made me happy. I got it all cleaned up but I can't figure out how to get the heater control knobs off to get them 100% clean. There is still reminders on them. Does anyone know how to get them pulled off? I'm guessing they just pull straight off, but don't want to break anything.