Eating during break time is more of the Black Hat because if you eat while playing, that makes you to get stomach pain. It is like this just like sleeping. If you eat then sleep, you will get head pain.
Wasting fruits is more of the Red hat because not much schools can get free fruit for the kids. So the emotions for the students and the teachers are different. The teachers are mad, the students with no fruit are sad while the students wasting the fruit is guilty.
Playing Rugby at playtime is great but not so great without a ref. With no ref, they might fight or someone might cry. So please play with a ref.