Have you ever been driving with someone in their car, and suddenly they decide that they are too hot, and start taking off their coat without stopping the car? Or even worse, they decide that they are cold, and start putting on a pullover sweater. All you can do is sit there staring at the road and praying you are not going to be killed. And then they always make is worse by getting stuck halfway through the operation, and asking you to help them. So you're pulling at their sleeve while they are swerving down the highway. Or they tell you to take the wheel from the passenger's seat while the sweater completely covers their face and they start fighting it and wrestling with it. People, please, don't do this, it's dangerous.