I always find it interesting to see what people write on paper money.

Often, the message is cryptic. That was the case with something I noticed yesterday.

Written in black ink on a $20 bill I got at a bank drive-thru on Saturday was "MARILIN."

No phone number or anything. Just "MARILIN."

These days, that could actually be the correct spelling.

I assume that's a person's name. But I can only guess about why someone wrote it down on a $20 bill.

Maybe the back-story involves a great romance. Or perhaps mental illness.

Feel free to make you own guess.