McDonalds.

I was probably 6-7, back when you could walk up there with $1 and get a cheeseburger and some fries, and an orange drink from that yellow cooler thingy. A dollar was big money to us kids back then, and I remember standing in line there and looking down and seeing a $50 bill on the floor. I picked it up, and I thought it was fake, I had never even seen a $20 back then. I showed it to my parents when I got home and they snatched it away and that was the last I ever saw of that!