My favorite burger is a pounder from McDonalds. It's really a rather simple concept. Just like a quarter pounder with 4 pieces of meat and 4 pieces of cheese. If you can eat two of these you are going to hell... very shortly!
None-the-less try explaining this to McDonalds staff, they just have no idea. Especially when you say "it's like a quadruple quarter pounder" and the fools reply "so that's three pieces of meat?"
I ask for one in Sydney, I was shocked at how quickly the counter staff got the concept. She poked her head into the kitchen to make the order, to which I could hear one of the burger boys reply "holy $~!+ !". That lack of proffessionalism really made my day.