Propoeller jobbie flying from LUX - AMS a few years ago. We'd reached a decent speed when the pilot hit the brakes hard. We taxied back to the terminal and deplaned.

There were about 30 kids on the plane from an international school and as soon as we got into the terminal, they all called their parents with "Dad, dad, the plane nearly crashed" messages. The poor teachers phones then nearly melted under the pressure of anxious parents calling them.

I was impressed that after the ground crew fixed the fault, the flight crew took the plane up for a circuit to prove that the repair had worked. It was still a little tense on take off though.