When I was doing flood relief around Richmond and the Colo River in the early 80s, the only really dry place was the RAAF Base. I was desperately low on fuel and requested a clearance in to pick some up and drop off a police dog handler with his dog.
The lady in the tower asked my POB, and I replied "3 POB and one Dee-Oh-Gee." She asked me to repeat, and then she got it. I crossed the airfield boundary and plopped on the first available taxiway. She asked me to continue to Air Movements, but I stayed put and asked for the fuel truck.