David, we used to call that a "bootleg" turn; except in the days when I was doing it, we just had a foot operated parking brake (much easier with the hand lever type parking brake). It takes a little practice to hit the clutch, shift to neutral, stomp the parking brake, turn the wheel, immediately back to the clutch, shift to 1st, and release the parking brake and clutch almost simultaneously to do a very quick 180 and take off the other direction, usually with the wheels spinning forward while you're still rolling/sliding backwards.
One question I used to use on safety quizzes was, "If the brakes on your car fail on one end, would you rather have working brakes on the front wheels or the rear wheels?" It's surprising how many people think they'd rather have the rear brakes working, and that's definitely the wrong answer. If the rear wheels lock up, even with the front ones still turning, the back end is almost sure to go to one side or the other, but if the front ones lock up and the rear ones are still turning, you're almost sure to continue in a straight line. And of course, the early anti-locking brakes, only worked on the rear wheels for that reason. Now with the 4 wheel anti-locking brakes, you will go in a straight line if you hold the steering wheel straight, or even be able to maneuver in the direction you want.
And, as you said, the same applies to trailers.
Incidentally, for those of you who have anti-locking brakes on your car, but have never stomped the brake hard enough to activate that feature, you really ought to try it someday in a safe place before you really need it. That pulsing of the brake pedal and the different sound and feel have caused some people (including some police officers) to release the brake pedal in emergency situations, have an accident, and blame it on "faulty brakes" when they were actually working as they should and the accident might have been avoided if they hadn't let off the brake pedal.
