Re: Something smells here
Maybe the Windows Administrator tools weren't installed on the Dev machine, maybe there was IP address restriction on access to the AD, maybe he enjoyed working at his old desk better, maybe his seat was more comfortable than the Dev's seat, maybe the administrator was still sat up by his PC waiting for him, maybe there was a better view from the window of his seat....
Does it matter, the Dev's credentials were in the code, he didn't need to use the Dev's machine?