German Capitalization
Something I've found interesting as someone who has been learning German as an additional language since 5th grade (I'm now a junior in college), is that it severely messed up the way I write english for a while. I remember between 5th and 8th grade getting essays handed back to me in english classes and my teachers asking me "Why do you keep capitalizing random words in the middle of sentences?" then saying "Capital letters are for the begging of a sentence and names/proper nouns". I knew that was a rule, but then I would see words like "Haus" und "Katze" capitalized in the middle of sentences during german classes.
It took till high school to realize that I was over-capitalizing, because all nouns are capitalized in German, but not in English. I might just be weird for not noticing for so long, but has this happened to anyone else?