It's an
anxiety attack when you're pushed to paranoia and rituals, thinking of all things that will seem to go wrong. In the case of Simon, he cannot use plastic cups or plates when eating. He's never been to any fast food chain or even McDonald's. He's scared that he might catch a deadly virus with unsafe food handling and service. He always packs his own utensils wherever he goes that's why he's bullied by boys in school thinking that Simon's a freak or a fag. There's nothing wrong if you always wish to be in the pink of health. But don't you overstep the boundaries of pathetic reasoning, it's an OCD side effect.