I don't want to work weekends, mmmm late nights not really, cleaning the floor - I don't do that.
To be honest this post sounds like trolling. Why would you expect people to work weekends and late nights unless it's shift work, and why ask them to clean the floor unless they are employed as cleaners? As CMS said, all that should be in the contract of employment in the first place. That's how a civilised society functions.
This sounds like total rubbish. There are always people who are happy to do extra hours or unsocial hours if it's
properly paid. Of course if you're expecting people to do extra time at your whim for the love of your business, then you deserve to be 'disappointed'.
spent a lot of time working hard in your medical training
What medical training?? Do you think this guy is a doctor or other medical professional? Somehow I very much doubt it. Probably used to be a sales rep in pharmaceuticals, or medical equipment or something and yes, as a result of that, would certainly have put in plenty of hours, but 'medical training' no.