Immigration paperwork isn't exactly my idea of a good time, especially after coming home from a day of wrangling 109 fifth graders. I do believe I've memorized my passport number. And no, I'm not some crazed terrorist attempting to sneak into your country. My girls can be a threat to your sanity, at times, but no risk to national security.
Excellent - I get to go take a flattering passport sort of photo to attach to my paperwork. The good news is that they haven't asked for my weight... yet!