Whistle in or out during free throws?

[jTheUmp]

Originally Posted by fiasco

Usually I have my whistle in my mouth at all times during the free throw, with the exception of when I'm L administering, I spit the whistle out right as the ball reaches the rim, just in case it caroms off the rim and hits me in the mouth (yes, it's happened).

Where are you positioning yourself as L that the ball could carom off the rim and hit you? I get wide (and deep, if there's space) enough that I think it would be nearly impossible to get hit by a free throw that touches nothing but the rim.