Board Thread:Episode Discussions/@comment-4271790-20141218174745/@comment-11276487-20141219163531

VinnyLam wrote: I like how people in Naruto are capable of just popping their eyes out without any pain.

I think when we saw the Sasuke vs Itachi fight, Sasuke was yelling in pain of Itachi ripping off his eye.

So not all of them are completely pain tolerant to it.