I vote absolutely intolerable. In a sit-down restaurant, the entire purpose of going is to sit down and eat a meal.. its a convenience and a break away from home. If Im paying for a meal thats suppose to be convenient and relaxing and having service bring the food and refills to me.. i should absolutely be entitled to a relaxing atmosphere. Hearing a kid screaming incessantly is ruining the entire point of eating a meal away from home.