got hit/punched in the back of the head while fighting for a loose puck last night. hit hard enough to knock my helmet off and my glasses as well. So i'm sitting on the ice, with no helmet and refs won't even blow the whistle while sticks and pucks are flying around in front of my face. and i couldn't see anything. didn't realize my glasses flew off until i got up and was skating back towards my bench. Aren't refs supposed to blow the whistle if someone loses a helmet?