I wonder if someone can help me: I've been asked to do 3 workshops per day for 5 days at a festival. What I would like to know is: do I need a do up a contract? If so, I need to put somewhere in there that the area needs to be closed (so every body doesn't have access to the balloons and pumps), the kids need to be supervised and not left there, etc.... Is there a contract out there somewhere? Many thanks in advance