Dana Snay, a Miami teen-ager, is probably in big trouble. An appeals court tossed out her father’s $80,000 age-discrimination settlement because she violated the confidentiality agreement by bragging about it on Facebook. The offending post:

“Mama and Papa Snay won the case against Gulliver. Gulliver is now officially paying for my vacation to Europe this summer. SUCK IT.”

“TMI,” cried Gulliver’s lawyers. Patrick Snay had served as headmaster for the Gulliver Preparatory School for years when they chose not to renew his contract. He sued and settled, but only on the condition that he and his wife keep the agreement private. So the infractions here were twofold: Snay divulging the deal to his daughter, and his daughter broadcasting it online.

What can we learn from their misfortune, millennials? Do not boast. Do not mess with attorneys. Do not over-share on social media, especially when you’re not even going on a European vacation. (Snay was joking.) In fairness, secrets have always been difficult to keep; throwing Facebook into the mix just raises the stakes. (Something about that hypnotically soothing blue banner and gentle invitation — what’s on your mind? — wrecks havoc on your inhibitions.) Maybe Facebook should pay up. What’s $3,478 per word to Mark Zuckerberg?