The 7-11 in Lakehurst NJ. (7-11 is a convenience store chain in the U.S.) - their coffee is usually good, but this one store had what was possibly the worst coffee in the world. I was on my way to a job installing thermal windows at a housing development construction site, and I figured there'd be another place to get something to wash the taste out of my mouth, but there wasn't. I tasted bad coffee all day. 25 years later, I still remember that stuff when I drive by that particular store. It was that bad.