Really, a Capt pulled off a jumpseater who was riding in the back just because he didn't say hi? I would have been quite upset had that happened to me. And I can't think of why you would be REQUIRED to check in if you were in uniform if you were a paying customer. Screw that, I will take my seat with the sheeple and be asleep before the door closes. I no longer have jump seating privileges, but I am fairly certain that I didn't check in a few times when I did. And I KNOW that if I had a ticket I didn't check in.