Yes the 707.
Reminds me of the time the RAAF lost one and the crew a few years ago, playing around in the aircraft, switching off the rudder boost, among other things.
Pulling CB's and switching various systems off in the aircraft, you are looking for a reaction. It may not be the reaction the check pilot is looking for but a reaction none the less.
If you look for trouble often enough, you will find it. Dont try and re invent the wheel, as it's all been done before. Boeing built the the aircraft, not the military, the airlines or the Indian DGCA, so it is complete folly to disregard their recommendations.