A spray bottle of sun block that we bought says on it “Natural propellant”. I suppose this is in contrast to all of the unnatural propellants on the market. “To make the spray come out, just press down on this nozzle, which will trigger a small nuclear explosion.” Or I suppose they might mean as opposed to the artificial propellants, ones made with high fructose corn syrup and Red Food Dye Number 12.
“I’m sorry, but I only buy products with natural propellants.”
“But it’s a bottle of insecticide.”
And I suppose there are those types of people out there.
“I’m looking for an organic bug killer.”
“Here’s a rock.”
A natural propellant would be the wind or someone with a hand fan. “All right, Larry. When I throw the sun block liquid into the air, start flapping.” Other natural propellants include birds in flight and a guy who spits.