The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair.
I have older copies of a few of the files on my computer at home. But most of the bigger files I am having to redo from scratch. Had I known that he was transferring files, I would have backed up the important ones to a CD before he tried to transfer them. Some of the other staff members had no idea that he was coming and arrived at work today to find that they could not use their computers... they were told by the Parish Manager that it may be 2 to 3 weeks! I find that hard to believe. I would think that computer guy could get them access in a day or so. Since they didn't know what was being done, they did not back up their files to a CD or disk.