Rainboe, just from an engineer's point of view:
If you have something resembling a flat screwdriver bit, you can easily remove the quarter turn fasteners on the modules on the overhead panel and e.g. take the one for the start switches, fuel pumps or the electrics panel with you. It won't take you one minute to take them out, since the connectors on the back are usually cannon plug types and I doubt you'll get the engines started or the plane moving without boost pumps, electrics or e.g. hydraulics.
Years ago in TXL we had a F/O of the now extinct Turkish Holiday airlines, who got himself into an argument with his captain over some grievance. When the captain didn't look for a moment, this F/O removed the module with the start switches, put it in his bag and walked out. Eventually, after several hours, he dumped it in the airport police station, but he had effectively disabled the aircraft (by then the captain was out of hours and they were waiting for a new F/O to flown in from Turkey)
Edited for typos
Last edited by MD11Engineer; 2nd Sep 2007 at 21:16.