Just remember that living in a constant state of paranoia that you're going to be victimized is being just as much of a victim as anyone unarmed. You can only shoot one at the time. There's no valid reason to require this kind of firepower at your disposal. If you want a hobby, collect stamps.
Excuse me but who are you to be telling someone they can't collect guns? Also as he hasn't harmed anyone outside of the law and doesn't obtain them illegally then there is no issue and you have no right telling him he should be collecting stamps instead.
You have to look at the frame of a player. Particularly the legs. Gaffney looks like he will be snapped in two in this league. Barner looks the same way, and you can see how easily he goes down at NFL contact. At best, Gaffney will simply be a fullback. The kind that catches passes and so forth.