"My gun is bigger and my aim is better, try it."
"If you won't give me your money, I'll shot you"
How would you be able to get it while you had his pointed at your head? Can you teleport yourself?
If somebody manages to sneak up on me with a gun pointed at my head he deserves the money.
"I won't call the ambulance for your bleeding self, then, either."
"Don't even try to call the police"
The difference being that the injured man in the "Good Samiritan" parable was the victim of thieves (I guess they had guns, too?) and not the thief himself. You'd be better off with an icon of the repentant thief at the crucifixion to prove your point.
I'll make this simple- I don't own a gun and don't have anything worth shooting someone else over. I personally think guns are a coward's weapon.
That said, guns are a reality, the train on the anti-gun movement left the station around the invention of gun powder. To prevent law-abiding citizens from owning weapons leaves them open to victimization from criminals. Banning guns doesn't stop the black-market on weapons, and even if we managed to invent a time-machine and prevent the invention of gun-powder we'd still be having this argument over the bow and arrow and swords. People have a right to defend themselves, and in this country they have the right to do so with fire-arms, instead of leaving themselves open to anyone who disrespects all lawful authority and individual rights to property and life by choosing to behave criminally. I do not judge people for exercising the human impulse of self-defense through the ownership and use of guns, especially people with wives and children to protect.
Also, I do find guns to be aesthetically appealing- a well-made tool is always beautiful, no matter what the intent behind its creation. Thus, I like the pictures on this thread, even though I have no intent of ever using one of the objects depicted here. You can choose to find this thread appalling, if you wish, I would find a world in which this thread was not allowed to exist because only the military and criminals have guns even more so.