[Woah, that's a bombshell. It doesn't fit in with the way he has been greeted when he was mistaken for Nathan, either. Still...]
I will be careful, thank you. [Being stabbed is not a thing that he wants to do again. To divert any feelings of his own that he might be thinking about having, he holds out a hand for a handshake.] I'm Pavel Chekov, and I have never stabbed anyone.