On my recent flight back from LA I was seated in the window seat. I usually get the isle seat so I can discreetly use the facilities to vape. However sitting in the window it is just to much of a burden to bother the other passengers. So i did my thing very discretely at my seat. No one the wiser, however just about had a heart attache when getting off the plane I realize the guy next to me was an air marshall!
That was pretty funny!