Somebody told me this story about the "history" of curb chains. It sounds really weird to me, but maybe someone can elaborate on it or someone else here has at least heard it before.
He claims that curb chains were used for carriage horses, and there was a chain that the driver carried in his pocket with a 5 pound weight on it. When the driver wanted the horse to stand, he'd throw the weight on the ground and the horse wouldn't want to drag it around, so it would stand still.
I'm not going to bother talking about all the reasons that this story doesn't make sense. I just want to know if anyone else has heard anything similar.