i heard on the radio some great points that made me think:
1. Criticism often comes when it's least needed.
2. Criticism often comes from someone least qualified to give it.
3. Criticism often comes in the least helpful way possible.
By this point i was thinking, "boy is that right, some people should just really learn to shut up." And that's right when the speaker said, "so think about that the next time you open your mouth to criticize someone!"