my son has a pit-lab mix. the dog is powerful, he can cut a tree down with his wagging tail. an absolute love bug of a dog, who loves his daddy, but they are powerful dogs, and i just hope he never loses his sweet disposition. my son put him through an obedience training course (shock collar) and that training was incredibly effective in toning down the rambunctiousness (which was never mean spirited, just too much power if not disciplined to obey his master on command)
