When the Harrier GR5 appeared, it had the feature of 'hot refuelling', ie filling up on the ground without shutting down the engine.
A test pilot got a bit carried away one day when in a Sea Harrier, and requested hot refuelling - snag being on the Harrier 1 series the refuelling point is aft of the forward nozzle !
We used to do it "all the time" with our 1st-gen Harrier. As long as the nozzles were deflected down a bit it was pretty snagless.
Sorry about the thread drift.