My neice, a CSD, dealt with the problem rather nicely on one occasion. A very cross man told her in a very rude manner, (whilst jabbing his index finger on her shoulder), that he was sick of the screaming child next to him, and as there was plenty of space in Club, she should move him up. She very politely told him to return to his seat, and she would sort something out as Club was virtually empty.
She then moved the entire family (plus by now sleeping child) into club and indicated to the man that the problem was now solved and he had three empty seats next to him.
Be careful what you wish for!