If you speak two languages, you’ve probably taught someone how to cuss in the other language.
I’m bilingual, and I’ve taught people how to swear in a different language. It’s just one of the many things that I’m used to. Little do they know that I’m often just telling them how to say “I’m a sl*t”.
I should probably stop doing that. But hey, if you ever wanted to know how to cuss in sign language, some very helpful deaf people did it for us!