Wow! These stories are just too much! LOL!
I have to say, though, that if I were to walk into a Burger King, Wendy's, McDonald's, (insert fast food joint here), and the cashier asked me whether I wanted to supersize it, or if I wanted to jumbo my order, or if I wanted an apple pie, or if I wanted anything under the sun, I think I'd have a heart attack. I know I'd drop dead on the spot if I received a smile and "welcome to ___". My head would explode if I got any inquiry of any kind whatsoever! Anything beyond muttering their demand to take your order is a miracle.
I guess I take things in perspective. In New York City, in every last single fast food joint I have ever been to, whether Manhattan, Brooklyn, Queens, etc... the cashiers mumble something unintelligible and stare at you with something akin to utter hatred and complete disdain while you place your order. And then they bark at you to step aside and stand next to anywhere from 2-6 other people who just placed their order with said cashier and you have to wait.
90 seconds? 60 seconds? New York City doesn't have fast food. We have "stand there and wait because I damn well told you to and you won't get your food until I feel like getting off my rear and hand it to you and I don't care if it takes more than 10 minutes food."
Oh and better still, my favorite retort from a cashier, "Go ahead and tell the manager. He won't care either." Again with the glazed over, hate filled stare.
So I would LOVE to go to any of those "talkative" fast food joints you all have. And they can chat away! AND offer me an apple pie! AND I won't ask for any custom orders! Promise!