I read this story and watched the video and reminded myself how quickly things can go wrong even if your just pulling away from some traffic lights!
http://www.dailymail.co.uk/news/article-3030474/Dramatic-moment-caravan-completely-destroyed-driver-towing-loses-control-trying-overtake.html
http://www.dailymail.co.uk/news/article-3030474/Dramatic-moment-caravan-completely-destroyed-driver-towing-loses-control-trying-overtake.html