I just had pancetta and Swiss on rye. I think if more people did this, and more often, the world would be a better place. I'm fairly certain that the pancetta, which is the platonic ideal of bacon, combines with the cheese to release some sort of endorphins.
(Of course, I understand that I have differing food ideas than most. At the blogmeet, when the waitress came around to take dessert orders, a few people ordered green tea ice cream, and I had another three pieces of white tuna sashimi.)