First I want to know why you didn’t answer my question.
It is very hard to tell horror stories like that in this forum. I can tell you about a man who used to sit in shul and talk about all the things Obama did to ruin our country and how people were so sick of listening to him that they had to volunteer him to be the Shaliach tsibur for every tefillah. The problem is that no matter how make believe the story is, I have no doubt you will actually know people in real life who do that very thing.
Except for one guy who talked about politics all day and he was so full of hot air that when the furnace broke they actually had him stand in the back of the shul and blab just to keep the mispallelim warm.