2 year old lab

Question
I have a 2 year old lab and 4 boys.When friends come over he is great buy if someone puts there hands through our fence or if we are at the park he will try to bite large men and small children.My husband is 6 ft and that is who he listens to.

Answer
Well what you can try is to use a chock chain and whenever he does that pull his leash back and say 'stop' loud and firm

It would also be a good idea to take him to obedience classes,if you haven't already done so-and you call up a number of them and talk to them and pick the one you like best