hawkeye, There are all kinds of ritualized connections between food and religion. As for the burger. I think it's become a ritual, but it was originally based on taste, which makes perfect sense. If you smashed the burger just because, that would be more of a ritual, IMO.
margo, You so-called normal types just don't get it. A stew is a food entity. Set is right. It can't touch the salad. I think someone said that stews are unacceptable because all the foods are touching. A purist.
So last night I was watching TV and saw a commercial in which someone made a sandwich and then took a bite. He didn't cut the sandwich in half. Oh the horror! Cut the samwich in half you neanderthal. Bingo, another food ritual from me. You gotta cut the samwich. In the privacy of my own home, I cut it into quarters. Why? Because. That's why.