Made a fun comment on Facebook and had a hilarious bit of banter with some friends back and forth in the comments, but someone has hijacked it to further a personal vendetta with someone else. It's a blatant case of online bullying. Thing is it's between 2 work colleagues, so what do I do? Show it to me relevant authorities? Confront the individual who is bullying? Or make a comment about bullying in the thread? How should I handle this now that I've inadvertently been mad an accessory?