Advice: Go ahead, make someone's day (and why you should)!
It costs nothing to show someone else kindness. We all know the world is harsh, so be kind! We never know what other people are dealing with. On the outside, we all look pulled together and ready to take on the world. But a broken person hides their wounds, carrying them deep inside. You can't look at someone and judge their behavior off the cuff. Often deep, personal issues guide a harsh action or cutting words.
We never know what hurts have motivated others. You can't imag