Well, a little more background.
This coworker really is a good hearted person (if perhaps misdirected). He devoted 2 & 1/2 years of his life to helping people in Zimbabwe as part of the Peace Corps. He's a devoted husband and father, etc.
He also softened his stance as he talked to me. I'm a pretty friendly, outgoing, cleancut, and non-threatening guy.
Anyway, Chris (the coworker) went on to say that he's really ok with people who own firearms...just not, "those people who think they have to have an uzi or bazooka to defend their home."
I better not tell him about my AK yet.
If I can get him to go shooting with me the next time he comes out, I'll teach him with my .22 lever action Marlin. Depending on how that goes, I may move him up to my bolt action Mauser.
Here's something else that I thought was ironic. Chris, on a couple of occasions, joked, "If I go ballistic, so-and-so better watch out..." He was very clearly joking when he made these remarks, but I still found it disturbing. I'd never make such a remark, yet he didn't even think twice about it. I've become much more careful of my speech and actions since I became a firearm owner. Something about understanding the responsibility that comes with firearms.
Perhaps people who are uneducated about firearms don't realize the gravity of making idle threats.