On my way to the PDC in Los Angeles, I get the usual drill at the security check at Schiphol airport. “Where are you going?”. - Los Angeles. “Why?” - Well, I'm attending a conference on software development. “Why do you want to go there?” - I'm a software developer, so I hope to catch up on the latest technologies. “So, you're in computers, huh? Can you tell me why every time I get an update for Windows, some stuff doesn't work anymore? Like, when I last updated my computer, the CD drive stopped working.” - Euh... I wouldn't know. It should work, and it usually works fine for me.
After that final remark, he now surely believes I'm a developer and wishes me a pleasant flight.