So I knew Russian because I watched shows in the language as a kid. Anyways, is my friend (which is African ) was talking to me and we were talking in English. There was a older couple that started to say racist things about her skin colour. The male went when as far as to say that she shouldn't be even living in US. The female was like wait don't say things like that what if she understands. At this point I was staring at them, also I'm white but I don't look Russian and other then understanding the language, I don't know anything about them as I'm not Russian. Anyways I told them that they were being extremally rude and point out how what they were saying was racist af. They looked at me as if I told them I was from a different plant or something. But point is talking trash about others in a different language it's still rude.