Over and back?

[Spence]

Speaking of over and back - Rookie official working my 2nd scrimmage. A has the ball in the front court and is being pressured by B. B slaps the ball off of the leg of A and the ball rolls into the backcourt. B for some reason doesn't go after the ball letting A have it easily. I know that if A touches it I've got a whistle. While I'm thinking this I'm also thinking that as soon as I blow the whistle I'll have the fans and the coach riding me for the call. Sure enough A touches the ball, I blow the whistle, and I got the expected reaction. "It was TIPPED!!" "How can you miss that when its right in front of you?"

My wife didn't understand why I didn't turn around and explain the rule to the fans to prove that I was right. Obviously she will not be a ref.