The only thing that stops a bad guy with a gun is running out of bullets
The only thing that stops a bad guy with a gun is Batman
The only thing that stops you from having fun is not having a gun
There are no heroes and villains in the real world
The only thing that stops a bad guy with a gun is getting rid of guns (note: DO NOT USE THIS ONE!)
The only thing that stops a bad guy with a gun is a powerful gun lobby
An armed society is a polite society (note: not the one, but save for later)
Nothing can stop you when you have a gun
If trees had guns, they would have shot the unabomber in his cabin
If a bad guy has a gun, you best get up and run
The only thing that stops a bad with with a gun is a good guy with a tank
The only thing that stops a bad guy with a gun is a funny rhyming pun (too meta?)
The only thing that stops a bad guy with four guns is three good guys with ten guns each
The only thing that stops a bad guy with a gun is a worse guy with a gun
The only thing that stops a bad guy with a gun is a good guy with a gun
A Man Eating Chicken 