Every one is saying he would go crazy, my thoughts i think Naruto have enough experience to know that going nuts isn't going to solve any thing the way i see it he may get angry well very angry but i think he would handle it but if it doesn't go that way well the second slap or something along the lines should do it but one thing is for sure the person who did it is surely a dead man.
What i would happen to me if this happens, well simply said i am gonna die of grief :'(