My black lab Chewie has cost us $$$ in destruction. He jumps on people, pulls on the leash, destroys anything within his reach, barks when he's in the crate and sees me sit down, runs away when he's loose outside to visit the neighbors' labs and he's very, er, annoying towards my other dog, a collie/chow mix. Even though she snaps at him, chasing him and attacking him, he thinks it's great and chases after her to continue the fun "game". He is neutered and almost 2 years old. Can't afford training classes. Help?