I have learned not to upset the cook. You definitely don't want the cook mad at you. In fact there is a huge list of people that you don't want to upset... let's just say it isn't wise to upset anyone. And yes, it is best to let sleeping dogs lie.
I have learned that no matter how hard you try, you can't please everyone, and some people you can't please at all no matter how hard you try. The trick is to know which ones you can please and which ones you can never please.
Never feel embarrassed. Embarrassment is a one sided emotion and all one sided emotions are useless. Sometimes love can be one sided, but love doesn't need to be returned. I love a lot of things that are incapable of loving me back. For instance, I love the wilds of nature, but nature can be quite dangerous at times. I love chocolate chip cookie dough ice-cream, and I don't think that it actually loves me back but it does make me feel gooooood.
I have learned that you don't always get wiser with age, although you do have a lot more past experiences to help you make the right decisions.
I could go on and on and on, but I don't want to bore you, so I will say goodnight for now. Now, you have a great day, what is left of it, and a better day tomorrow, you hear?