Well that's the thing! I will tell you what happened in detail,
My friend is a new anime lover and his first watched anime was high school dxd (LOL) and I was giving him suggestion on new animes like it, our other friend came from behind and heard our discussion and just said "It's just some cartoon" and I corrected him "Japanese cartoon" when I turned to look at his expression (my new anime lover friend) I was laughing very much, the look that told me that he was wronged, I my again laughing imagining his face, he's a new guy in community but still more fanatic to anime than me and I respect it.