Should you read your credit card number out loud on a subway? (Days at the Museum #3)

On we go, with the third entry in "Days at the Museum" over at McSweeney's, titled "Mind the Gap." It ran yesterday. It's theme? Beyond relating to a subway conversation, I'd summarize it as being about the gap between what I expected here and what I'm finding.

This is part three of "Days at the Museum." Part I was noted here; it was about macaroni, and France, and tourists. Part 2 was noted here; it was about elevators, more or less. Have a time with them.