I think BBW's example was an extreme circumstance, but it gives the idea of the kind of thing that can happen. Life happens, you might be called away for a couple of days to help with an ill friend or relative. You might have computer problems. Anything may happen. I know of more than a few occasions where people have asked Fencer to add vacation days on somebody's behalf because they are unable to get to the PC. I have asked Fencer to this and I know I'm not the only one. As BBW says, ANY system is open for abuse, and all you can do is avoid these players.