Wow, fear really is the mind killer.

You can tell because the "people" who paid for this billboard - and the theoretical people who might take it seriously - clearly have dead minds.

Here's a hint: Many people "may not" use deadly force, in the sense of being forbidden by law to do so. See: England.

But anybody can do so. If this frightens you so badly you'll avoid places where it can happen, I strongly suggest locking yourself in your cellar for the rest of your sad, meaningless life. Dig a cellar if you don't already have one. Warning: Shovels can be used as deadly weapons, and you wouldn't want to be one of those people who can use deadly force. Therefore you must dig your cellar with a blunt teaspoon.

Or - you could just decide not to be a wimpy dumbass. Today. Just say to yourself, "I will not be a wimpy dumbass today." Then see how you feel about it tomorrow.