My response should such a crew show up at my front door:
GET. OFF. MY. LAWN!
"Racking a round in to this shotgun will make a sound that will get your attention, and probably alarm you, very much. I'm not gonna do that though, because there is already a round in the chamber. But...if you listen very closely, you'll be able to hear the 'Click' as I take the safety off. Now, what was it you wanted to talk to me about?"