Sometimes I think it's about how teams are perceived. Teams like Stoke, Sunderland, Hull and other teams that are fighting relegation are perceived as being generally more physical than passing teams like City and Arsenal, so in some ways referees are pre-conditioned as to how they are going to play before the match starts. Even teams like Chelsea, Everton and Man U are looked upon differently than us. It's not right, because standards should be the same throughout, albeit we know that will never happen and in some ways it's what makes the game so watchable.
From the players perspective I think we've got to be very careful in everything we do on the pitch and how we react to decisions that are made during games. Forget the games against Barcelona, they're one offs and Barca are the masters in feigning fouls, it's naivety and poor discipline that could come back and bite us on the arse in the Premiership. Losing Kompany against Fulham isn't ideal but should be manageable, losing him against Man U would be serious. Our defenders need to learn to stay on their feet better and not go to ground so quickly. Yes, Kompany was fouled, but then he gave Mason the opportunity to red card him and, guess what, he did. Sometimes, like MDM against Messi, accept you've been beaten, trust to luck and hope Hart can save it. Better to be one down with eleven men on the pitch than one down with ten.
Same with Yaya who, on occasions, comes across as petulant when decisions go against him. Imagine the impact if we lost him for the game against Arsenal because he'd hurled the ball down in temper and got a second yellow following his first, for kicking the ball away. Sometimes it's not easy to think straight in the heat of the game, but that little extra professionalism might earn us a point or two more over the season, and that point could win us the league.