@Yuu it's still very insensitive to do that when someone's grandparent died. Keep it to yourself next time. Even if you didn't say it's funny, that comment is insensitive
@Yuu somebody's grandparent just died and you choose to comment a meme song regarding it. Even if you don't see it as offensive, anybody else could, including the author. It's a fresh wound and you decide to say that. Even if you didn't mean to be mean, it is. Insanely. Insensitive.