I think you misunderstand what we were pissed off with Real Madrid. It was the talking to the press openly about our player, whether it was Perez, Zidane or one of a number players that really pissed people off. Combine that with the way they also leaked stories to the press about Levy making demands in excess of £100mill plus players and trying to force us into selling Modric for much less than we valued him and you begin to see why we were angry.
It was similar with Chelsea, they kept the Mail up to date with every offer they made for Modric and opened negotiations with an insulting £20mill bid, which would've given us a profit of about £4mill on a player who we'd said is not for sale. United do it too, they tried bullying Everton this summer and bid £5mill for Dembele last summer.
I'm sure we're not whiter than white in transfers but generally we seem to be much more respectfuly. We don't spend months repeatedly bidding way below the club's asking price for players.
It depends what the bid for Mata is really, doesn't it but as I said I don't think anyone's mentioned insultingly low offers, tapping him up directly or in the media so I don't see where the hypocrisy comes in. Still, I can't say any of us will be losing any sleep if we did use any of those tactics on Real, United or your lot though