Hi all so we have had our lovely boxer puppy for nearly 3weeks now and hes nearly 11weeks old now and just need some tips please 1: he still whines abit when either he wants attention or don't get his own way or wants us to open the door so he can go in other rooms. 2. When he's told no he barks at us. We have tried saying no, yelp,ignoring him, water squirt, stones in can, but he keeps barking at us like he's telling us off 3. He sometimes jumps up on us or tries to get up on sofa we tell him down but sometimes he don't want to listen. 4. When playing a game he growls when we are holding toy and tugs at it making it a tug of war game which we don't want it to be. Then that makes him all hyped and snappy. I read somewhere we shouldn't let go or he's won? 5. He doesn't like to be left alone even in a room quickly or for long periods. Only left him on own once when had to both go out, We put him in his crate when at home and leave the room and he howls and barks for about 40 mins before he stops and sleeps. He sleeps nearly all night in his crate with no problems. He will be going to puppy training classes but that's 3 weeks away so would like some tips to help us until then.