Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-14066471-20130801225910/@comment-6068707-20130802042900

In the latest episode, when Aiden got clawed at by Cora, we see Ethan clench his chest as he feels a deep sting. He says that Aiden is hurt.

Wouldn't that mean that they can't harm each other in an extreme level. I mean if they were to try to kill each other, wouldn't they both feel the pain to some extent?

Unless that was just written in to the episode?