Ok, so I have a question. I was going to go on a trail ride today but to get to the park, I have to go on a good bit of road. Now, my mare is good with traffic, I've never had an issue. We've ridden on the road a few times, nothing happened. The road we'd be riding by (on the side of the road) the speed limit is 40 but people go 50. She's been around at max 30mph, so should I be worried that she'll freak at a car going fast?