More of a survey than expecting a definitive answer.
3 children walk home from school.
DC1 spies feather, asks DC2: Ooh, a feather, get that for me!
DC2 keeps feather for himself.
DC1 bursts into hysterics: I saw it first!! Make him give it to me!! etc. She already has a pot full of feathers in wardrobe at home, of course.
DC3 joins in with screams and demands for the feather by the time we arrive home.
Would you intervene at all? Tell DC2 to give it to DC1, since DC1 saw feather first? Fetch a feather for DC1 and DC3? Tell them all off? Throw feather on the fire? Open the wine early? What would you do?