Replying to GoPro and hockey?

Ok so my brother goes to college at UMD Duluth and this weekend Duluth is playing U of M in hockey. It is tradition that the fans of each school get together before the game and play each other. My brother wants to mount my GoPro on his helmet to film it but I'm not sure if it's a good idea? I know the GoPro can take a beating but will it withstand being sandwitched between a helmet and a board? I assume that the mount would probably break but would the camera be ok?