Barton got Diabi, then Gervinho sent off in a match, then acted in a similar silly manner and got sent off himself. Yet the guy is still singing?

At a time when he'd been asked to leave Newcastle United and no one wanted him, Warnock offered him a way out and this is what he gets in return?

Whether Warnock is likeable or not is another matter entirely but Barton's action is extremely unprofessional in my view.