I'm not a tech person so to be left in charge of the sound desk for an event is a little disconcerting.
But nothing went wrong. I just paid attention when the bod told me which dials to twiddle and what flashing lights to look for. I'm convinced that often the fear of tech is what makes you make mistakes.
In fact the biggest problem we had was trying to fit a wide-screen projector's projection onto a normal screen, possibly the most non-technological tech problem you can have.
*This title deliberately apes the title of the previous post. I wonder who will spot it...!