Sarah Dawson (right), is a trainer for St John Ambulance and came along to help Jodie Patchett (left) learn the skills of the trade in applying 'injury make-up'.

"At St John, we have the expertise to know what bruises look like, even if they're a week old," says Sarah. "I knew that I could come along and pass on enough skills to teach OTTC how to make up a bruise on an actor. We can even lend you the make-up!"