I go spotting too, but I'd only go in summer. It's hard enough trying to stand in -10 to -15 for a bus for five to ten minutes, and to have to stand in that same temperature at the airport where it's all open. The bus shelter there is no refuge at all....only serves as a refuge from the cops when they come by..."Oh I'm waiting for the bus, officer" and when they leave, head back to the fence and pin your face into it like a 2 year old

. When he came by the second time and I didn't make it back to the shelter in time, he ordered me to the other side of the road, where all the others were standing. Whew, luckily he left me to see the flashing lights instead of taking me along with him in his car with the flashing lights!