well 1st off he's already pissed at Danzo.. as he is after his life as per Madaras instructions..
2nd.. after he sees the sharingan... he will feel it is the same as with oro.. tryin to steal sharingan powers... which will make him even more mad.. the initial reaction wud b of shock though
i don't think he will be shocked that much!
He wouldnt care of one hell of an one eyed some old hag sharingan guy.
But If Danzou beats him to half dead then he will be definitely shocked
"He's got more power than I"