Damn it

What part of “NO SOLICITING” do people not understand?
Just had a Bible-thumper come by and ring the doorbell to share the Word, which, as a good Jew, I have no interest in — at least not his version of it.
Do I have to change the sign to “NO SALESMEN, BIBLE-THUMPERS, POLLSTERS, CANVASSERS, CONTRACTORS, OR HANDYMEN” in order to get some peace?
Actually thought of the perfect solution the other day — I need to get a DAY SLEEPER sign. Then I have an excuse to meet them at the door with the .45. Or that Mossberg 500 I keep drooling over and not buying.
That doorbell is not an open invitation, assholes.
EDIT TO ADD: I have it. “RINGING DOORBELL MAY BE HAZARDOUS TO YOUR HEALTH.”