Just got a customer come in saying “People love Hawaiian pizza, but a real Hawaiian pizza uses shrimp instead.”
Wiki says it's basically a hawaiian pizza WITH ADDITION of shrimp (Sauce + Cheese + Ham + Pineapple + Shrimp). That's wrong, I got a "Thumbs up." from the customer, which means it wasn't perfect.
The correct pizza was basically hawaiian pizza + shrimp - ham (Sauce + Cheese + Pineapple + Shrimp). It even says on the wiki, that after you choose "What?", the customer says "Yeah, I said it! I want a REAL Hawaiian pizza, with shrimp and pineapple!”
Also, under the same order variation there's the "pinapple shrimp" order, which suggests that you should also use ham on that, even tho that's also wrong.