I watched one guy limp up to the doors before everyone. I'm standing in Atlanta and I see this guy walk past me, no limp.  Just to play devil's advocate, he might have a legitimate physical problem. I don't think it's too uncommon for disabilities and injuries to allow people to walk short distances before then becoming too painful to go on. A couple hours sitting would be enough for many of those to become tolerable again. That said, I'd agree that the chances of it being the case in this particular situation are pretty low.