Usually, you have to act now and impulsively. I mean there's the pride of showing off and all that stuff. But the majority who will want to show their friend in any possible way. And it's a definite danger. All the anti-gun arguements are lame as hell.
Crime is lower in states with concealed carry laws.
Criminals won't register or turn in their guns. Let's make cars illegal. The opposite is far more often. Stalin, Mao, Hitler, Turkey, India, Cambodia, etc. The UN wants everyone defenseless so they become the world's police.