A childhood belief about swearing

When I was little, a lot of my books were British, but some were American (and some were in French, but that's another story). So Mom had had to explain to me that there were some words in English that were different from words in American, like "boot" was a thing that went on your feet in America, but it was the space in the back of the car in England. (This after I asked where the boots for the car were.)

A little while later we went skiing, and I was put in ski kindergarten. Apparently the instructor swore in front of me. Dad came home soaking wet from a rainstorm one day, and I said "I wish this fucking rain would stop".

After a little investigation by my Mom, I revealed that I'd learned "that word" from Trevor, the ski instructor. Mom cleverly explained that since Trevor was Scottish, he used some different words, and if I used those words, nobody would understand me! So I forgot all about them. Good thing I didn't think I could speak Scottish!