I've got a friend like that. He's raging anti-gun and most probably thinks I'm a total nut. He's tried to get into it with me a couple times but I've shut him down and refused to discuss it as he's so closed minded that he will never see my point of view. If he found out I have my CCW he'd flip and that would probably end our relationship, but oh well, the protection of my family and myself comes first, not someone's feelings. I have another friend in the same circle of friends (we all went to high school together) that shoots and just applied for his CCW, so we joke about not telling the other guy things when we talk about guns.