a big YES to how hard this is to stop. Our dog was not always leash-reactive; she became reactive after our other dog passed away in 2016. Despite a lot of work with a professional, she's still leash-reactive, so we take steps to keep her under control on walks.

(She's also trained for bikerunning, and does NOT need extra care for her control when doing that. bikerunning is apparently Too Fun to pay attention to other dogs about. when attached to the bike she is only focused on one thing, and that is, how fast can I run next to this bike)