What rules/ advice does Old Major give the other animals towards the end of his speech? Whatever goes upon two legs is an enemy. Whatever goes upon four legs, or has wings, is a friend. And remember also that in fighting against a Man, we must not come to resemble him.
Mercutio, he was taunting Tybalt into fighting him, calling him the King of Cats, and saying "I am your man". Tybalt wasn't trying to fight Mercutio, but after a while, he just accepted the fact that Mercutio wasn't budging.
