Early in my database developer career, I started a new job at a mortgage company. I was poking around the code, just getting familiar with things.

One script identified properties in certain states/territories for special handling:

AND STATECD IN (‘PR’, ‘HI’, ‘AL’)

I thought “Puerto Rico, Hawaii, and ALABAMA?? One of these things is not like the other…”

Yeah, that was supposed to be Alaska (AK)… But they’ve been special-handling properties in Alabama for years.