As a current McDonalds employee, this is maddening, just so you know, you're not the center of the universe, we don't only deal with you, we also deal with everyone else ordering, both inside and in the drive-thru, and not only that, we have to cook lots of stuff very quickly (you'd be surprised how quickly a batch of 8 patties goes away, in case you don't know, it can be less than a minute in our store), but we also have to cook it for the right amount of time (back to the patties, we have 10-12 seconds of perfection to take all 8 patties off the grill after they cook, but before they overcook, and organize them into a small tray, and if we don't, we're supposed to trash those that went over the 10-12 second mark, and sometimes they don't throw them away, which is where you get the not so good taste), and many other things.