It took me a little while to remember how to use a fork. You know, we don't use forks in the penitentiary. You get a spoon.
One of the rudest things you can do, food-wise, is to stare at someone in the act of eating. It draws attention to the unseemly fact that eating is a bodily function - like animals, we are trapped by our hungers, but we do our best to disguise them with such civilized props as menus and forks.
My mother was a waitress in a Lyons Corner House, but she married up. She was keen on bettering herself. She taught me how to use the right knives and forks and behave properly.
McDonald's revolutionized fast food. They introduced a way to eat food without knives, forks or plates. Most fast foods can be eaten while steering the wheel of a car and the restaurants are usually drive through.
Forks often arise from differences of opinion in the direction of a project. And tokens are increasingly a mechanism for voting on changes to their protocols. Since the point of a fork is to try a new path, the new fork may not want to port all of the prior holders opposed to trying the new path the fork was created to take.