On one Transport Canada gear up landing they had pulled the gear warning CB! If you watch the cockpit video of the TBM landing gear up{ in France I believe it was, }the bloody thing was blowing all the way down final. Both of these aircraft used written checklists, we had a Mooney gear up at a local airport a while back, as they transmitted turning final the gear warning could be heard over the pilots voice, ah well, as the FAA recently said, "you cant legislate against stupidity".