Unless things have changed, as an employee at Mc Donald's during my college years, we were not allowed to accept tips. You could get fired for doing so.
I think the blue-green color you get when you burn copper is one of the most unusual colors in nature. I also like that it forms a patina to protect itself from a corrosive environment.
Norris Fact: When Chuck Norris goes swimming in the ocean, he doesn't get wet, the oceam gets Chuck Norrised.