 maybe you're the one that has the air intake at the lower part of your bumper. Or you catch a splash from the other vehicle where it makes a little wave. A little wave, and it sucks it in. Your vacuum that you're driving. Everybody, I think, has used a wet dry vac at home at least once. And what happens when you touch that 5-horsepower, 3-inch hose vacuum to water? Just immediately, boom, and it sucks up 5 gallons of water in seconds.