When I was at SFGAM, these parents draged their kid on to Whizzer. I couldn't understand what they were saying(sounded either Polish or German), but their daughter was screaming and everything. The parents were trying to keep her quiet, but everyone in the area was looking at them. The kid finally got on the ride and she seemed to enjoy it. However, she had a "I won't tell them I liked it" kind of attitude.
The ride ops were great though, and they sent the train when she was ready. They seemed to keep an eye on the train(from what I saw, but I'm not sure as I wound up in the car behind them.), but I still can't believe the parents made such a big deal over a coaster.