Learning to use these "bombsights" in the Middle East took some practice and balance. So did trying to keep you pants clean, and not falling backwards into the trough. LOL
When complaining of the barbarity of these things, the locals said what was barbaric was sticking your bare ass on the same seat thousands of others did. They had a point.
Rarely any paper, just a water faucet and your left hand. Consequently, the left hand is considered unclean.... it usually is.

