Whoa now. I have DJ’d in pretty bad shape before and the show must go on. A true entertainer will have that mentality. Missing a wedding would not even enter into their minds.
If there was a real emergency that was truly out of my hands I have an extensive network of friends within the industry. It would have to be major though. So major you would feel extremely concerned for my well being.
To date this has never happened. Please knock on something for me.