Harassment in Hearthstone

Occasionally I receive friend requests after a win or loss in ranked play.  I usually accept them because I enjoy chatting with other people about the game.  Today I accepted a request and received a few extremely rude comments and name calling that were sexual in nature.  I decided to respond with "have a nice day" but the person had already removed themselves from my friend list.  Even though I know the verbal attack had nothing to do with me, I still get shaken up when confronted directly like that.  This type of thing could obviously be prevented if I never accepted any friend requests, but I'm not going to let a bully ruin my fun with this game and cause me to be fearful of making new acquaintances. 

Have any of you had an experience like this in Hearthstone?

Is there some sort of way to report this behavior?