I took Latin in high school. Does the school even teach Latin now? It's been a dead language for thousands of years, and it isn't very handy to know Latin any more. Before, you would know the etymology of words, but now it doesn't help you with words like LOL. It was useful back in the day though. A daily reminder was "ablutionis retro articularis" -- wash behind our ears.
Here are some handy Latin phrases:
Semper ubi sub ubi ~ Always wear underwear.
Caesar adsum iam tuit. Cicero adarat. ~ Caesar had some jam to eat. Cicero had a rat.
And we all know: illegitimi non carborundum
