Re: Peeing when excited/nervous....do they outgrow it?
There are plenty of threads on this issue if you just look around the puppy section. I've never had this issue, but my friends boxer did it. I think it's called submissive urination or something like that. They grow out of it eventually, but there's plenty of tips on how to handle it when it happens, just look around a little.
If he's doing it when he's playing and excited, my guess is he just isnt being let out enough. How often are you taking him out? Puppies have no control over their bladder so they need to be taken out all the time. Like at least once an hour, maybe more. Always take out after getting out of the kennel, waking up, playing, going for a walk, eating, etc.