A common method that Massachusetts drivers use when taking a right or left onto a road where they do not have the right of way. A driver will turn out and cut other people off. Instead of turning onto the main road and speeding up, they will pull out, realize they are cutting you off and then come to a complete stop while turning onto the main road, until the driver(s) they are cutting off stop to wave them on. It's one of the most infuriating and dangerous parts of driving in Massachusetts.
There was a small opening in traffic so I decided to use the Massachusetts right of way to make sure those drivers would let me turn onto the road.