Hugh, Anthony MFloyd,
Thanks for commenting.
Hugh,
Chin guard in helmet, but mouth guard not yet necessary. He's only had five lessons and at this point they're not using proper rubber pucks, but only sponge-rubber ones so there is virtually no chance that anyone will be hurt by them.
MFloyd,
The exposure was greater as shot, but reduced a bit in post-processing to get some separation between the instructor's dark brown clothing and the sign behind him.
Robert