Hit some black ice on the 435 access road to the nall/roe exits on the way home. Was going about 40 and would just slide when I hit the brakes, there were a couple of cars about 30 yards in front of me that I was convinced I would slide into, one was in the process of fishtailing. Resisted the urge to jam on the brakes like an idiot, kept moving forward and planned to rub into the guard rail if need be...Ended up being able to brake in time but wow, WHAT A RUSH.