"I told you what I did. Tampered with some of the more futuristic, heavy duty artillery as quietly as I could, I didn't hurt anyone, and the damage isn't permanent. In fact it's rather easily fixable if you know what you're looking at."

Which, he feels is entirely justified. Given his reasoning.

"Do you think it was wrong of me to do that? Deploy preventative measures to try and protect our ship when it comes back? You know how I feel about authority, and what I think of the Cap'n certainly informed my decision, but apparently some of our crew's inmates think I've committed a terrible sin. I...dont know how I feel about that, given the two in question are civilians, and probably have never been through a war in space."