just don't take it personally...i had some guy on a bus tell me that being a pilot has to be easy b/c all you do is sit there and nothing ever dangerous really happens...he also assumed $300,000 a year...and that if you don't fly 747s you don't have a good career...
you'll find that as soon as you put on the costume and go to the airport people feel necessary to ask you really dumb questions...like commuting out of jfk today there was an hour delay...the lady turns to me and asks why the delay? the weather isn't bad here and it's not bad in boston...you can tell them all about the airway systems, its capacity, flow control, EDCT times, etc. etc. i just told i wasn't sure why but i was sure that she'd get there and that i wanted to get there more than anything she's ever wanted in her life...then chuck norris came out of the rest room and round house kicked her...
anyways...people don't know nor can they be expected to know...i don't know how much a fishing boat captain makes...or a train conductor...so i don't expect pax to know...