Carpe Diem: I forgot: to make it work, one should check "no days off", or the victim will be saved by the vacation (unless they have used it up already)

No, I don't want to seriously advice to do this, but the players should be aware of it. Onee should care about the time settings and not complain if one didn't. And it can of course be reasonable to choose such time settings, as Aganju mentioned.

It is only fun and games, until someone loses temper.