Recovery: just remember that you weigh more than the bike and the bike will follow you. Release the brakes and let the bike straighten up. Keep your head up and your eyes forward as your body will follow your head and eyes.

I fishtailed once in a tri when it was raining and there was tomato harvest goo all over the roads. I was going into a turn trying to pass someone. I pedaled a little harder and momentarily took a straighter line.