We were stuck at the top of The Beast's second lift hill last year for about 20 minutes. The first car or two had crested and the remainder were still on the lift (I was towards the back). It was about 9:30 PM and fairly dark. They made a couple announcements and sent two people, a staff person and a supervisor, to make sure that we were okay. They climbed all the way up to us. After a few minutes, they got the call that the ride was going to be restarted and they cleared out. Moments later, the lift restarted. Didn't scare us but was a little aggravating because my bladder decided that it really needed to go right there and then. It was a very quick hustle out of the station once we unloaded.
I no longer get in line without first consulting my system needs.