[@Akayaofthemoon] Yeah, unfortunately big crowds like this are magnets for certain types of people.  A common thing in New York is having people get in your face and tell you how much you need to check out their "free" album.  I don't know if that happens in Chicago but I didn't see it when I was there, so maybe that's how he got fooled.  I actually lost a lot of money to people doing that the first time I was in New York, but since then I've learned about what they call a New York Negative, ie pretend they aren't there and keep moving.