[BobDDuck]

There was a great training video I saw the last time in reccurent about how a 737 with a deadheading crew on board was about to take off with their spoilers up. Everybody thought the flightdeck crew knew because there are all sorts of alarms that go off when the spoilers are out. Even the plane behind them knew they were up but nobody said anything until they were on the runway with the power coming up. Then the deadhead crew members started making noise and the plane behind called on the radio.