Used to be a drop zone nithe Dallas area with a Porter that they used to do hot refuels on. This involved running with the fuel hose between the prop and the fuse, sort of under the engine a bit then climbing a ladder on the other side as the tankes were in the (high) wings.
I never did it and I never stood anywhere near the aircraft when the bloke did it either.
Actually that's not really true, I'd stay upwind and close enough to have a good view. I mean I wouldn't want to miss that show now would I?