Is there a way of describing to clients when they book for waxing, how long the hair needs to be? How short is too short? Something basic like if they put a £1 coin flat on their leg, the hair must be longer? Or something? I'm booking people in but really no idea if they'll be good to wax when they get here, just hoping as most have been waxed before. Is 3/4 weeks growth ideal or can it be done shorter? And if I attempt to wax, and the hair is too short, what's the worst that will happen? Will it just not remove or might I do damage? (I'm fresh from my course and only doing strip wax (cream) at the moment. Thanks.