that happened in awore, and now the -- aurora, and the police are involved. >> reporter: nothing beats coming home if you've got buds like mark joey is the oldest. >> he's the calm one. low energy. >> reporter: lincoln is the biggest. >> normally when they see lincoln, they're always intimidated by his size. >> pounds, and rarely barks. >> come on. >> reporter: well, sometimes he barks, but no one has ever complained about lincoln, until yesterday. >> they actually sent us a letter in the mail, didn't even have our names on it. >> i threw it in the trash. >> reporter: sharon got the same threatening letter about her barking dog. >> there's ways to poison the dog, and now this. >> they would either throw over would do antifreeze. >> reporter: who would have a problem with 17-year-old cheyenne? >> i'll call the police on them and stuff. >> reporter: watch out, letter writers! sharon's tough. >> the style -- >> reporter: and so is mark. i've broken two baseball bats with my bare shin and pe the dogs are harmless, so try to knock on the door before sending out a letter. >> this could have