sit on the other side of a plane to balance it ???
Passengers asked to balance plane
The airline wanted to ensure cargo and passengers were evenly distributed
Dozens of holidaymakers returning to Newcastle refused to fly after they were asked to act as human ballast.
A jammed hold door meant luggage could only be loaded into the front of the Thomas Cook plane at Mallorca airport.
Passengers were asked to move seats to distribute the weight, but 71 left the plane, fearing for their safety. http://news.bbc.co.uk/1/hi/england/tyne/8115216.stm