I spent ten years being severely lactose intolerant after contracting giardia and there were days I went "You know what? Stuff it, I'll stay home, I want this cheese/bowl of icecream"

(I went to an allergist and he helped me become tolerant-ish again. It's great. Now it only happens if I decide "no, I want that cheese AND that creamy pasta AND maybe a dairy-based dessert.")