It's gross to eat out of the garbage can.
Robin is at his apartment and notices his roommate threw away half of a salad in the trash.
Robin doesn't want the food to go to waste.
Robin removes the salad from the trash and walks it outside to throw it in the compost pile.
Robin carefully removes the salad from the bin and decides it is safe to eat because it was on top.
Robin's friend notices the move and compliments Robin for thinking about putting it in the compost instead of the trash.
Robin's roommate sees him eating the salad and makes fun of Robin for being disgusting.