Check out the medication cups:
For some of us, the replacement of ketchup packets with the fucking antipsychotic cups from One Flew Over The Cuckoo's Nest did not occur without note. Fact of the matter is, it happened the same time everyone's packaging went from styrofoam to paper. Ketchup packets were usually thrown at you by the fistful and, based on observing friends of mine who ate fries (I've always hated them), you got about four fries per ketchup packet. Switching to those wretched little paper cups meant McDonald's didn't waste a dime for every extra seven ketchup packets you didn't eat as well as keeping them out of a landfill for hundreds or thousands of years. It also meant that you were now eating ketchup out of the container most commonly associated with Prozac and thorazine.
I'm not sure why you would fold out one of those cups. If you want ketchup in something you can dip your burger in, unwrap your burger. Splooging ketchup on a flat surface does not require 30 seconds of handwork.