Dinner Table Conversations

What classes a conversation as a 'dinner table conversation' or as is more often heard, 'not a dinner table conversation'?
Here's a few precious samples...

"Its one of those things like being pregnant..."
"Well, I think there can be degrees of pregnancy..."
"No, you are either pregnant, or you are not. It is either a shark or it is not."
"If I was pregnant, and it was a shark, I would be most upset."

"What does ketchup mean?"
"What does mayonaise mean?"
"It is the French for 'jar of fat'."
"What does relish mean?"
"It is called relish because you relish it."
"I can't say that I have ever felt that emotion towards relish."

Some things sound funny with an English Accent...
"taa-cos", "maa-zda proh-teh-jay", "paa-sta"
Some things sound funny with an American Accent...
"I'll have the Caesar salad with Sal-mon. Sal-mon-Ceasar Salad...."
"Sal-mon-ella Salad...???"
"We are out of Sal-mon-ella salad, would you like chicken instead?"

WARNING: It has been scientifically tested and proven that the aforementioned 'dinner table conversations' can cause acute gastronomic discomforts up to and including pukin' sick!

Feel better A :(