I was with my girlfriend at a restaurant whose decor was filled with a bunch of old furniture and knickknacks. Next to our table was a stack of books. My girl

I was with my girlfriend at a restaurant whose decor was filled with a bunch of old furniture and knickknacks. Next to our table was a stack of books. My girlfriend opened the top one and inside the cover was a bunch of money - maybe $200 in twenties? Over dinner we talked about what to do about this, and ultimately she added $20 more to the stash and left it in the book. That restaurant is now gone.