I've never had one. Three years of driving, and the only time I was pulled over was by 8 cops in full SWAT gear. It was pretty terrifying and hilarious. I had three dude friends in my car, we had just picked up our friend. I was driving down a residential road in a neighborhood and suddenly realized a sports car was tailing me. I said "guys I think we're being pulled over" then they put their lights on so I pulled over and stopped the car. Three other undercover cars came out of nowhere and boxed us in, and then we were surrounded by the cops in their fucking SWAT gear. They asked for the IDs of my friends but didn't want mine. They questioned us for more than 10 minutes "who are you, what are you doing here, why are you on this road, do you live here" they wouldn't answer any of my questions and wouldn't let us go. Finally they said "a suspicious man ran from an officer and we thought you guys were one of them". The officer still didn't let us go until another female officer stepped up and said "just let them go it's clearly not them". I love telling this story.