We have some that like to raid the dumpsters at my work, grabbing all the out-of-date tossouts. Some of us try to leave their preferred grabs open and easy to get, so we don't risk a bird getting caught when someone goes to crush the trash.
They've learned to recognize who's going to open things, and will wait with a shiny sometimes. It's hilarious to walk out with someone else, and watch them observe, deciding if it's safe to fly over or not.
I’ve been putting out peanuts for a nice crow family that lives in the trees out back for quite a while. They let us get within a few feet of them now, and they never caw at us; we call them our polite crow family. But no shinies yet, sadly. It’s okay, I’m not doing it for the shinies.