So Cory REALLY knows how to get under Michael's skin... Like NO ONE ELSE. Is that evident?

And yes, Cory is taller than Michael. Didn't stop Michael from the fight the previous year, because despite his size, he's probably three times as strong and anyone around him.

Michael is super touchy about people using forms of his name that don't appear on his birth certificate... Cory knows this and does things like this on purpose to poke the bear. (He doesn't really know the shark's in the hood....)