Crash Course - Circles

When I lived in New York there were certain areas that had traffic circles for merging into different routes. Maybe it has changed since then, but from what I remembered as a kid they were nervewracking because they were commonly situated on the border of New Jersey, the state with exceptionally aggressive drivers.

The rules for yielding within these traffic circles was different for each state. For New York drivers, if I remember correctly, you yielded before pulling into the traffic circle. It was more cautious. And for New Jersey drivers they would rush right in and expect those in the traffic circle to yield for them. Strangely enough that's how people here tend to yield for anything, traffic circles or not.