If things go crazy, then we are least a little prepared. If they do not, we have lost nothing.

[Yes, better safe than sorry.] I know some ships. I did minor repairs on a few here and there and built a few working models, but my knowledge is fairly limited. My master took care of all of that.

[aka he built the ship with his mind and nothing ever went wrong.] I can turn a wrench with the best of them, though, if someone tells me which wrench to turn.