I seriously doubt you would be able to dispense anything but foam with a spray hose. It would be like the sparklers used with real ales, except the beer would be carbonated and foam worse.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk