i dont put my hands or arm anywhere near open windows when im in the car anymore cause in june just when i was ab to leave utah and go back to the uk me and my ex bf where smoking in a walmart parking lot because theres literally nothing else to do in the state of utah and some guy had his arm out the window at like his elbow yk just like normal but then the ****ing side of the car went against something and his arm came off and they had to pick him up in a helicopter im pretty sure he died bro theres so many major veins and shit in your arms