The old saying “If you don’t have anything nice to say, then don’t say anything” is wise and should be followed in most social situations. If you keep your snarky thoughts to yourself, you won’t have to apologize for them later. You will be grateful when you are calmer that you didn’t say most of the unkind things you thought. Kindness begets kindness. Be the one who starts the avalanche of kindness. It is also true that you should think before you speak. Most of the hurt feelings in the world could be avoided if each of us thought before we opened our mouths and let let words flow out without being filtered first.