The classic trick from days of yore with the F27 services out of Melbourne after the then VFL Grand Final is probably not legal now due to OHS etc.
The punters knew enough to shut up and board like lambs but often on climbout the noise level would start to build and get to the point of being even frightening for those travelling with kids, little old ladies etc.
Their trick was to increase the cabin altitude and temperature. Snoring their heads off in no time. Generally it worked a treat but I do recall one TAA F27 calling Company in DPO to call the King Island Police, diverting there and booting 25 passengers off to face the music from the waiting Constabulary who were probably not in the best mood being dragged out on a Saturday night. It was also school holiday period and it took 3 days for the last one to get home.
Probably not politically correct now
Oops - sorry - missed earlier posts re this. Skipped a page.