G.S.
My mom still nags me about how I hold my pee too long. (TMI?) But, starting at about 8 or 9 I would hold it and hold it until I would leak and have to change my clothes. I don't have any clue why I did that. I did it for 2 or 3 years though. And as I said, I still hold it way too long.
My brothers are gross (13 and 18 now). No matter how many times you tell them they NEVER put the seat down, wash their hands, chew with their mouths closed, etc. etc. etc. But since my 18 year old brother got a serious girlfriend, he started making a conscious effort to brush his teeth, shower, etc. without being told.
Maybe that is what being a boy is. I don't know.
Curious- is your son in many sports? Because maybe he needs some physical release to get some energy out.
Baby is crying - will type more soon.