I had one year of Latin in high school. I remember it well. It was difficult and challenging unlike any other school experience.. It has always had a positive effect on me and my ability to learn.
I was joking with a friend the other day about the plural of Prius.
Since Prius has a Latin ending, I was speculating on the plural, many such Toyota hybrid vehicles. In English it would be Priuses.
I ended up looking it up in Wikipedia and found that Latin declensions were far more complicated than anything I learned in my brief one-year exposure.
I will save you the trouble of looking up the article in Wikipedia. The plural of Prius is Prium.
So when you are driving down the highway and (especially in California) you pass two or more such vehicles you can point out that you have passed a Prium.
I don't expect that to make much sense to anybody who is riding with you, but it is cute.