Dripping Gasoline on Panel During Pit Stops?

Filled 'er up at my favorite Pemex station and when the pump shut off, gasoline shot out and spilled onto the shoe of the female gas attendant (here in Mexico, employees are still hired to pump for the customers). It also spilled onto the ground and the quarter panel. Anticipating a problem, I waxed the quarter panel below the filler pipe before heading to the gas station (and I also warned the girl beforehand the fill pipe was finicky).