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My 4 month old black lab has alot of energy. Sometimes, after a walk, during a walk or when just playing in the backyard he will stop, look at me then basically "atttack" me... He jumps up starts biting at me. I have tried the "ignoring" thing and the "rolling on the back and "muzzling" thing as well, he reacts better to the dominance roll. Any suggestions?

In a group of dogs or any animals there is a leader and rank, most people shouldn't try physical training because they don't know how to read the dog and the correct timing, but when done correctly I think it can be better than reward training. But for most people reward training is the only way to go because, they can't physically train their dog properly which leads to problems, but reward training is much easier to understand and for most people can't be done improperly.