I don't know what Alf thinks of this, but I'll happily give you my view!
Santos was an idiot for initiating a swap with Persie after the bitter taste Persie's leaving Arsenal had left in the mouth of every Gooner. Özil giving his shirt away to some no mark player with no connection to Arsenal whatsoever, who asked if he could have his shirt, is nothing at all. To get upset over that is totally ridiculous, especially in the light of us going out of the CL that night, and because the 'incident' clearly not having any bearing on the player's performance on the night. Only in England is something this trivial blown totally out of proportion by hacks up and down the country.