After one has seen the consequences of a decision, it is easy to tell whether or not the decision was favorable, but it is also too late, since the consequences have already occurred.

(childish) extended form of easy peasy

Used to introduce bad news.

(rare or obsolete, proverb) If a person is determined to punish someone, they will find a way to do so.

(astronomy) Synonym of my very educated mother just served us nine pumpkins