lol, I really like the final throwaway line about Goku not getting food poisoning. I agree that Lunch, or at least that Lunch, doesn't deserve it but her and Roshi getting sick was inevitable, it's definitely just Krillin who's getting karmic punishment. And I admit, I found his antics enjoyable here, trying to cheat by faking a rock, stealing it from Goku, then throwing away a fake. All pretty entertaining, especially since he is punished for it.