It's rude not to share with a sibling.
Jane, who lives with her family, has just brought home a large order of chili fries which her sister wants to eat with her.
Jane wants to eat enough to feel satiated.
Jane gives her sister a small portion making sure to leave most of it for herself.
Jane refuses to give her sister any of the fries because she is hungry.
Jane's sister enjoys eating the fries and is happy with the amount she's given.
Jane's sister thinks she is being greedy over her surplus of food.