sounds like it was gimmick vs gimmick.
da is not only a very stupid pos, he also can't fight his way out of a wet paper bag and he knows it. otherwise he wouldn't have spit and run like a little girl.
if this pos actually knew how to fight he would know that you don't walk up within striking range of someone talking shit. on that point, if vince knew how to fight he would have known he had a wide open taget right there and then and by the time da was spitting at him, he should have made his move.
he didn't for the same reason da didn't thrown down, because they are both scared little pups that prefer the comfort of a gym with mirrors than actual physical confrontation.
welcome to bodybuilding 101, where grown men spend their whole life attempting to look like he-man
so they don't have to fight. 
trust me, you will never see these muscle bound wannabes
EVER walk their talk because it's just not in their nature. they would much rather preen themselves in front of a mirror and blow 80 year old sugar daddys.