Beat me to it.

I tend to be very calm once I get through security and/or on the plane, I think because I know that once I get into that controlled environment, there's not a lot I can do about anything until I get back off the plane and back outside again. I had to make a quick return from MSP to BNA last winter because my wife had called to tell me that my mother-in-law, who was in hospice at that point, probably wouldn't make it through the day. I went standby and squeezed into the last seat on a regional jet. I remember having a nice conversation with my seatmate, an farmer from somewhere in Minnesota who was going to BNA for a weekend getaway and had never been there, and had seldom flown. I never brought up my own reason for flying that day and was able to forget about what was going on with my wife's family for a while.