If there's anything I know about explosions, it's that stuff shorting out can definitely cause them. [And like he just said, he knows how to set up explosions. He just hasn't had cause for it in a while. What he did at the time was a little more complicated than a blown circuit breaker turning into something bigger—mostly because he didn't want anyone hurt—he knew that there were other ways to go about it. Leave it to Keith to decide that it would happen here.]

If it blows up, I can handle it. I know you won't risk getting yourself killed.

[Rhys is too selfish to do that.]