I have a great Uncle, 81 years old, and there is no censor on his mouth. It's more hilarious than annoying though. He's also losing his hearing, and so he speaks VERY loudly. He also had this very grumpy dog that he couldn't leave at the house, so he would bring it and leave it in the car and take it out food and whatnot. But anywho, one Thanksgiving, some of us had gotten our food and sat down already, including my uncle, when my dad walks into the dining room to sit down and eat. And very loudly, my uncle says, "Oh, if I knew we were letting dogs at the table, I would have brought in Haddie Mae."
None of us laughed, but we were all dying on the inside.
My dad is kind of a jerk, btw. My uncle does not think highly of him (obviously).