Ha-ha, dude! why would you keep doing that if you have been warned "2-3 times"? I mean come on, you need to grow up. Say you hit one, or maybe even just throw one near it, you could freak the driver out and they could swerve and hit an on-coming car, or go off the road! These aren't "What ifs", these are certainties! Anyhow, who knows, but the driver can sue you for any damage done. Emotional or to the car. GEt your act together!