On the other side of the scale, there’s Rodney. Difficult, diamond-bright brilliant, bulldog-loyal Rodney McKay, who never fails to save the day – to save John, and incidentally everyone else – always to an soundtrack of ego and bluster and frightened whining.
Double-Doctor McKay, who has the best and the brightest of the Earth as his terrorized also-rans, and who takes shit from John Sheppard like it’s his job.
John probably has more than he wants to think about in common with the people he’s pretty sure fucked with Rodney back in high school. He rarely resists the urge to mess with the man himself. He likes to think of it as a public service to keep the McKay ego under control. Besides, Rodney gets it. It’s just their thing.
All the same, Rodney – privately, because it’s not the sort of thing you want to admit in front of marines – had become something like his personal lodestar, something he can use as a beacon and still pretend to be winging it home."
— Do not hide, see the view by that_which.