A written job description does help, we started to use one after reading this a few months ago. I send a written job offer describing a typical day and a not so typical day, during times of illness. I make it abundantly clear they must be willing to perform everything on a bulletted list (that is also discussed). Nevertheless we just had a caregiver tell us almost every shift I'm not comfortable doing this, that, and the other. I had 4 texts from her over the course of her first 2 days telling me she wasn't going to do 3 out of the first 5 items on the job offer list! Buh, bye!