I was at Primary School in the mid ’80s. Once we went on a school trip in a minibus with bench seats along the sides, and all the luggage piled up in the middle. The teacher gave it the gas over a humpbacked bridge, and the last-minute shout of “Hold On!” was as ineffective as it was late.
Given the construction of the seats, there were no seatbelts to tether anyone and it all went a bit Vomit-Comet in the back, as kids and luggage floated around weightless, ISS stylee.
The re-entry was harsh, one boy had a split in his head from hitting the beam strengthening the roof, and one girl lost control of her bladder upon landing, sending a streak of piss along the vinyl covered bench, scattering kids to the other side of the bus. How we didn’t subsequently roll, I’ll never know. We had to stop to let the teacher sheepishly mop up all the body fluids.