Reminds me of one of the few episodes of South Park I have ever seen.
Homer has a handgun for home defense.
The cop tells Homer that he can legally shoot someone entering his house
Homer calls out "Hey Flanders, come over here"
The cop tells Homer "Uh, Mr. Simpson, it does not work if you invite them in."
Homer, clearly disappointed says "oh".
So I guess I can't invite one of those political fanatics assaulting our neighbourhood and pop them one?