Nah, not at all. Just trying to add a bit of levity to my response. People train in martial arts for all sorts of different reasons.
I think what the teacher was trying to get at could have been that he still would have walked away from a bad situation, but that he would have been able to respond forcefully if necessary.
My aikido teacher says that you have to know how to kill so as to be able not to kill (not his direct quote). I know what he is trying to talk about is the sword that gives life, not taking it away. The knowledge that you could severely hurt someone through your training, but that you have learned enough not to.