Yes a Celtic captain shouldn't push a junior player whilst on the park and he let himself down. Yes a junior player who is perhaps getting too big for his boots should not tell his captain to "F*** Off". But here's the thing.
Gordon Strachan has built a team of winners. These guys are out to win and to get mad by bad play and a daft goal means they have a go at each other then in my book thats a LOT better than the Rangers attitude of shrugging their shoulders and not caring.
This arguement amongst players will be turned round by Manager Strachan and the players have already gotten over it. If there is still a bit of bad feeling this will disappear as it always does and the next game will see the players fired up. Rangers in form against Hibs and now a seriously wound up and motivated Celtic. The game next weekend is going to be fantastic.