Don't think about it. Don't think about the fact that the people below are tiny, that any minute now the helter-skelter man is going to give you a shove and there's nothing you can do about it. Forget that you saw them polishing the slide this morning so you'll go faster. Forget that you're afraid of heights.
The eight-year-old waiting her turn behind you is buzzing with excitement, clearly not fazed by the huge distance between her and the ground. Focus on that. Focus on the fact that she's not afraid.
Surely you can be braver than an eight-year-old. After all, you're supposed to be staff!
This was my day at Eden Arts' Penrith Winter Droving: a festival celebrating rural life, with food, games, entertainment - rounded off with a mask, fire torch and lantern procession after dark.
There were performers roaming the streets, musicians providing entertainment at the three stages around the town, children with masks and painted faces, delicious smells wafting from the food village, handmade craft stalls, cookery demonstrations, vintage tractors, horse and cart rides... The list goes on.
It was busy, bustling with people all afternoon and evening, but the chance to look around the stalls, try out the helter-skelter and take part in the procession at the end of the day meant that this was one of the best 'work days' I've ever done!