I got that one several times. I say "no, it's too commercial" The stupid look on there face usually ends that conversation.

The variation was, "do you want to fly for a real airline someday?"
I respond with "Can't, I'm not a real pilot"

The funniest, my neighbor asked if I knew any real airline pilots after finding out I flew packages. Told him, certainly not, at least none had admitted to me that they were.