he is a year old he wants to be top dog put that foot in that A$$ and let him know u are top dog!!!! u aint gonna take no chit with any agression other then what u wanna give.

the way i see it he is in his pen and thats his pen wrong!!! that pen belongs to u he is just a renter. i think he feels pressured by ur other male trien to invade on his home. if he is fine in the woods and in the box and every where else but the kennels, i think he is just trien to protect his space!!!
Chris thats kinda wha i figure. he knows who the boss is from a little pen barkin he had when he got here. When the shock therapy didnt work we went to a piece of screen spline. Id get in his pen and we would "discuss" what the word hush means. Hes prob just getting into the testosterone stage.