We all fail to communicate things to each other on a daily basis. And you may think it comes down to cultural or personality differences, but it doesn’t. Family members, couples, school friends, and colleagues fail to communicate their intentions as if they met yesterday.
So when you tell your sibling it’s OK to eat half of your grapes, don’t be surprised to find their other halves chilling in the fridge. Sometimes it’s intentional and results in “malicious compliance,” other times it’s purely accidental.