He's staring off, not really hearing Jack, obviously thinking about something else. "But it just doesn’t make sense, it can’t be coincidence alone…"
He blinks and looks at Jack. "Sorry, what? Oh...the green wire. To the central column, that yellow piece sticking out..." He gives Jack a grin he hopes is reassuring, "Oh, I'm fine...just, you know, might sleep a bit more. Rose always says I don't sleep enough anyway." He frowns, talking to himself again, "'Cept when I was using it last time, and she thought I was suffering from depression...or had mono..."