I worked with a guy that said he and some Army buddies ordered several pizzas one night, including one with "everything but pineapple and anchovies". They arrived, and that one had - ONLY pineapple and anchovies.
They were all disgusted and pissed about it, but he said he was hungry enough and drunk enough to say "fuck it", and grabbed a slice. He swore it was the best he'd ever had! The perfect blend of sweet, salty and savory.
I like a good Hawaiian pizza with pineapple and ham, never tried the anchovies though.