I recall a "cute" story told in our hall. A small child had been misbehaving during the meeting, and the mother made repeated attempts to sush him/her, threatening to visit "the bathroom" if the behaviour continued. Finally the mother grabbed the child & dragged her/him towards the back. As they reached halfway down the aisle, the poor child, knowing what was coming, looked up and screamed out, "help me, Jehovah!"
I don't know if its common behaviour among JW's, I do recall being taught the "children are born selfish" idea, and I do remember some really awful things parents did to their kids who misbehaved during meetings (i.e. take them to the back, spank them, then hold their head down forcibly for a while to demonstrate proper position during prayer).
I spanked my children on occasion, simply because that was how I was raised - nothing to do with the religion, really. It was how my parent's and my generation did things. We know better now, of course. But I was not abused at the meetings, nor were my children, thankfully.
I used to always sit in the front row at the meeting with my children, who were normally very well-behaved. But I do recall at least one occasion when I was holding my daughter, and she was playfully making faces and talking to the people in the row behind her (she was about 2 years old). One of the elders came and asked me to remove my child because she was creating a disturbance. I was furious. They later instructed me that I should sit in the back (all parents with small children were supposed to do so). I ignored them and continued to sit in the front row. Heh. no wonder they DF'd me as soon as they had a chance!