"Way to go Paul"!  

I would hate to be the referees who have to call the game that this dude's kid is playing in. You need to be on your game the entire time. One bad call and suddenly this dude transforms from normal hockey dad into Terminator 2. He took a swing at that glass like King Hippo from Punch Out and shattered it with ease.

PS: I love how the other parent's reactions are so nonchalant. Something tells me this guy goes bonkers a lot and they are not the least bit phased by it anymore.