Chores have been kind of a problem with Mike in the past, and you tend to be fairly strict about him getting them all done, on time and properly - but you're not a total jerk about it.
When you come home, you quickly find Mike like this.
"Oh, I did 'em all before I left, Dad. I just forgot this one."
Does he get a pass, a lecture, a sore bottom, or something else?