Had this happen to a friend... Yeah, a friend, that's it....
Friend's wife worked at a union shop, state .gov agency in fact... Union was sending people out door to door to... encourage people to vote for their endorsed candidate... It turns out that they got access to voter registration info and to conservative homes, the thugs encouragers were always two bigger guys... Well friend had heard about this happening... And is not exactly what one would call "petite"...
So when a couple big guys knocked on the door around 9:30 at night wearing SEIU hats, he opened the door with friends. Six of them, in fact, small but highly persuasive.
The visitors were listened to briefly but politely, and told politely that under no circumstances would their candidate be getting either of their votes... The visitors quickly wore out their welcome when they began to issue very thinly veiled threats... Threats captured on a small pocket recorder... Thugs were told in no uncertain terms to leave post-haste... Then the mouthier of the two had a lapse in judgement... And said, "and if we don't?"
Mr. Mouthy quickly got cross-eyed as he now has the muzzle of a .357 revolver planted firmly betwixt the running lights. He kinda gasped like a landed fish a few times then says, "we'll call the cops on you!" At which point the recording device was produced, and they were told to please do, as they would likely love to hear the earlier threatening language uttered by the two gentlemen in question... Amazingly, said gentlemen decided they were needed elsewhere, and never did the union darken their doorstep again...