mbyron wroteExactly. And diction is no defense against legal liability: I can be sued for failing to enforce the policy just as easily as enforcing it using the word 'concussion'.
Plus, once he's beckoned, then he either has to request, and be granted, a timeout, or let the player sit a tick. After that it's up to him, and his health care professional, to let the kid continue to play, or not. The rest is none of my business. In Connecticut, I've done my job.