Threatening to kill someone is not a laughing mater, and it is against the law to kill someone. This is no different than a sexual predator intending to meet someone, even though he doesn't get any sex he is prosecuted as if he did. The same thing should go for death threats.
This is serious business, like Airport security, and just as airport security is not a laughing mater, neither are death threats, Mister.
You know, sometimes I hate adding a sarcasm tag...
Oh for Heaven's sake, lighten up. I'm talking about the old JOKE of "If I tell you, I'll have to kill you"....like I heard an actor from the Sopranos tell a tv interviewer yesterday when asked about the upcoming plot lines.
THAT'S what I meant, MISTER!