Prof: When May I Shoot A Student?

In an op-ed piece in the New York Times, a Boise State University professor Greg Hampikian wants to know, tongue firmly cheeked, when it would be OK to shoot students under the proposed guns-on-campus legislation:

I assume that if a student shoots first, I am allowed to empty my clip; but given the velocity of firearms, and my aging reflexes, I’d like to be proactive. For example, if I am working out a long equation on the board and several students try to correct me using their laser sights, am I allowed to fire a warning shot? If two armed students are arguing over who should be served next at the coffee bar and I sense escalating hostility, should I aim for the legs and remind them of the campus Shared-Values Statement (which reads, in part, “Boise State strives to provide a culture of civility and success where all feel safe and free from discrimination, harassment, threats or intimidation”)? Full op-ed column here.

Question: Do you think this is far-fetched?