These people really are a different breed. Fair play to you brother in law. Great respect. My wife is a nurse who is currently on immuno suppressant medication and recently had steriod treatment for a lung problem. She has been told by her GP, specialist nurse, consultant, boss, colleagues and other senior people at work to stay off work but she is having non of it. She feels there is a moral duty to her colleagues, etc. I'm not too sure I could do any of what these people have to put up with on a normal day but this is above and beyond.