So there are looking for something more robust when the pilots need to use the lav than a ~100 pound flight attendant standing in the front trying to look intimidating. I was in First Class on an Alaska Air flight a while back where that was literally the case - a very pretty, young woman flight attendant standing there trying to look mean and intimidating - it was almost comical to see, and I teased the young lady about it a bit later when she brought me fresh drink later
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That being said, uxb99 makes a valid point - maybe they're looking at the wrong problem...