I don't like mayo based sauces.
You and me both, my friend. If it wasn't for that sketchy lube I would have tried one by now.
I feel like, even though they do work at KFC, if you asked them to hold the sauce, they could manage to accomplish that. Did none of you ever work a fast food job? Or if you did, was it at "You'll Damn Well Have It Our Way Express"?
They could accomplish it but, boy, they would make you pay for disturbing the routine. My sister does not eat ketchup. We always had to wait an extra 10 minutes at Mickey D's for them to make one like that. A great mystery of my childhood.
As a mayo hater, I can vouch for this treatment. Then you spend a few minutes watching the next few people order, which gives the self-doubt and self-loathing of eating fast food time to creep in. The whole experience is compromised.
I do have to say, the move toward making fast food "fresh to order" has tempered this problem a bit.