I PVR'd in April 2002, did my last day of work in Nov 2002, took up my new job in Nov 2002 and got paid by the RAF (and actually left) in May 2003.
Didn't need anybodies cooperation - just a sound knowledge of QRs, the relevant APs and a very helpful coffee with the Chief Clerk, to get his expert opinion on my exit plan.
Even got to tell the resettlement officer where to stow his hat when he tried to interfere
PS Thing has got a very valid point...but I doubt it will go down to well on here.