My kids work under similar conditions but usually they are the ones being called at all hours to cover people. And what annoys me is the 'sick' people are actually hungover andthink its funny to call my kids who have barely finished a shift and are sleeping preparing for their next shift. The boss actually abused my daughter when she first started and unfortunately fell sick with vomiting for 5 days. Now, my kids aren't shirkers and after several years now I hope he has figured that out.
It is so frustrating. My daughter has a class this morning then she has to work an eight hour shift. It's hard to get better when there is no time to rest!