Heads or tails

Both kids wanted to be the home team for living room baseball tonight, so Mike decided to flip a coin.  He said to call it in the air, but Sarah watched it land on heads before calling heads.  He said, "You're supposed to call it in the air," and she exclaimed, "I couldn't see what it was in the air!"  He explained to her that you're not supposed to see and that that's the point of the whole thing.  Then he said, "OK, I'm going to toss it again, and when it's still in the air, you say heads or tails."  He tossed it, and Sarah yelled, "Heads or tails!"