Conduct a safety drill, have your passenger yell out SWAY!!

I have ZERO muscle memory or practice recognizing a sway event to "instinctively" reach for the manual brake control to active the trailer brakes in any sort of timely fashion, none of us do unless we get into a sway event every trip to practice. I'm adding the Hayes sway master this spring, I figure it will apply the trailer brakes faster than I ever could.