That's his passion. He attends every gun show in AZ and most neighboring states. His eyes light up and he is a nice person when he discusses AK-47s. He even has some secret dealer's license so he can go early this weekend. He's in his late 40s and not married, no kids, etc., so I guess he has to spend his oodles of money on something besides 'see food'.
You should get some Gun Owners of America, or Jews for the Preservation of Firearms Ownership gear and wear it to work.