Having seen the video of the incident on you-tube, that would be my response to Dida .... "YOU TUBE !!!"
Gordy - agree with what you say about much of it. The fan shouldn't have got onto the pitch, and he certainly shouldn't have approached or touched the player and I am sure his life ban from Parkhead and whatever the courts throw at him will make him realise that .... but bottom line is that Dida is indefensible ... he was touched/patted/slapped .. use whatever word you want and if hurt should have gone down on the spot, yet instead, he chases after the guy and when he realises he wont catch him goes down as if hit by a sniper's bullet !! If he actually caught him, what was he going to do ?
Dida may actually be Celtic's saviour in all of this ... if he had gone down on the spot, clutching his face after clearly being patted by the fan, UEFA would probably have no option but to fine Celtic heavily and award the game to Milan 3-0 but his antics and fakery - at a time when UEFA are monitoring things like this (eg. Mikoliunas) - has probably meant that Celtic will "get away" with a heavy fine for crowd control violations and nothing more. The Milan chairman knows this which is why he is not making a big deal about it, but I wouldnt be surprised if Dida has to pay some price for this at Milan.