As a PR manager myself, I've been on the receiving end of this. When I started at this company, they had a webdesigner they spoke highly of. We needed a change done to our website and they were the ones with access to the layout. Big mistake. It took me over a year to get everything sorted: the guy was 'ill' a lot and his co-workers wouldn't tell us for how long, he'd ignore emails and phonecalls completely...and there was not a thing I could do (plus honestly, being the entire PR department, I didn't have time to make angry calls all day). Eventually he even refused to give the password up (yes, I didn't agree with this entire policy where an external party could access the layout and I had to do content only, but that was sorted that way before I started said job). I threatened legal action, got the password, changed it and fired him on the spot.