I'm a very emotional person, plus was having leave my partner at the airport...one who I had been living with in England for two years, but overstayed, got caught (don't go there, I've already been raked over the coals in another section of this forum) and had to come back to the US to apply for a fiance visa properly. I cried really hard, but had my head buried in his shoulder at the time. He's an Englishman and was crying too! I cried on the plane, but put my head up against the window and buried myself under the pillow and blanket so nobody would look at me. I wasn't totally hysterically ready for a straightjacket after an 8 1/2 hour flight, but I must have looked upset because I did have several people ask me if I was okay...doh! I know some of them were just coming to the US for business or for a vacation, but don't they know that some people are upset at leaving loved ones behind? I guess if you aren't much of a crier, you might think somebody was a weirdo for crying, but certainly they have heard of the phenomenon...like seen it happen in a movie or something. By the way, don't ever cry at an airport in France, which I did once, even if you have to put a bag over your head lol