His reaction when walking off the field was pretty pained. Kind of a recognition that he had just done something really dumb, it looked like he was nearly in tears. It seemed like he was thinking now I've added to my problems (most of which are self-inflicted). He kind of clapped for the fans, which was weird since I doubt there were too many RBNY fans there, and touched the badge. Maybe he was trying to apologize, I don't know. He just seems pretty messed up emotionally right now.
His reaction is typical of your average Argie player. Although he plays his International game for Paraguay, he is born and raised Argentinian. Which means, emotional baggage comes along. Argentina has the most psychological doctors, per quota, in the World. Why? Because Argentinians are insecure, machismo contradicts!! Kaku has literally worn his heart on his sleeve and exerted his feelings accordingly. Now, it is all catching up to him. He needs to chill out and mature if he wants to be this God-send player. He is literally living under the shadow of Almiron on the Paraguay national team. Maybe it is too much for him to deal with!? Which goes back to the fact that Argentina has the most psychological doctors per quota....maybe RedBull needs to get him a shrink so he calms the fuck down!
I doubt the fan said anything to set Kaku off. He has been showing his frustration all season in similar manners. He loves to kick the ball to the sideline boards, its just that this time, it went straight to a fans face.