That's a good lesson. But for me the number one lesson is shut the fuck up.

Don't say anything with your real name. Don't say anything that a court can subpoena easily.

One day you (figurative you) may be in a self defense position where all your text and Facebook messages will be read to a jury of twelve when deciding if you are guilty or not.

Even a completely innocent man will look guilty if every bad thing he's ever said or done is shown in a 12 font 2 page word document.