You didn't say where you got him, but at 8 months, he may have some separation anxiety issues. Tyke spends so much time with me, that she does the same thing when I leave her. She jumps up on me and grabs my hands when I come back. The trainer we are working with told me to simply ignore her for about 5 minutes when I first come in - once she realizes that it is no big deal when I leave and come back, she should calm down. She hasn't stopped completely yet, but she is getting better. When she jumps on me, I turn my back to her and ignore her, and if she persists, she gets time out in the kitchen (but never in her crate!).
As for the peeing, maybe that is nerves or excitement. Tyke doesn't pee when we fuss at her, but she still does when she is excited to meet someone new. Depending on the behavior you are trying to correct, maybe ignoring him would be better than fussing. If he keeps it up, you may want to check with your vet just to make sure there isn't some sort of physical problem. It may just be that he is a pretty submissive dog who is nervous and just getting used to new surroundings.
Hope that helps!
As for the peeing, maybe that is nerves or excitement. Tyke doesn't pee when we fuss at her, but she still does when she is excited to meet someone new. Depending on the behavior you are trying to correct, maybe ignoring him would be better than fussing. If he keeps it up, you may want to check with your vet just to make sure there isn't some sort of physical problem. It may just be that he is a pretty submissive dog who is nervous and just getting used to new surroundings.
Hope that helps!