My thoughts were Anderson was looking a little bit rattled at the time anyway as he wasn't playing with his usual fluency. Barney threw his darts and when moving away from the oche he walked back as he would normally do. Anderson then stepped back in anger with the suggestion Barney had walked back too close to him, invading his space as it were before then taking his throw.
It was a key point as the game was reaching it's climax.
Barney then finished the match off winning 7-5 and I genuinely don't think Barney knew what it was all about until they shook hands at the end of the game a few moments later.
I don't think there was anything in it really, I didn't see Barney doing anything wrong - Anderson just looked a bit rattled and was looking for something that wasn't there, unlike him because generally seems a like a good bloke.
At the interview Barney looked a bit upset at what had gone on and was clearly baffled by the whole thing, he did say he was going to go and speak with Gary about it. Not sure whether anything was said later on as I didn't see the whole show.