Bonjour,
Yes I am leaving a clue or deux. It just seems that the timing of cockpit entry could be distracting to some as well as pax not being allowed to walk around during aircraft movement. Perhaps they were off duty flight crew. They appeared to be late 20's or early thirties. Would this bother you during pushback? As the cockpit door sat open for a few minutes in cruise I was thinking of a BA 747 in a 45° bank over Africa with pilots fighting a passenger for control. Remember that incident?