Originally Posted by
bett
as far as housebreaking, do you use a crate? do you have a strict schedule, when he goes out, after eating, how many times a day? is he tethered to you in the house so he doesn't have freedom to pee when you aren't looking?
are you cleaning up with nature's miracle, after cleaning up the urine, because they smell better than us and the smell will remain and he will tend to go there as well.
is he marking or peeing? a bit different.
depends how you mean "possessiveness". is it a corrective growl, like leave my bone alone and bug off, or is he ready to bite and tussle? if that were the chase, i'd take it away, and say MINE and then practice giving it back and taking it away so he realizes it's not really his, but he can have it, if he plays nice.