Never thought I'd see it...

[cshs81]

Here's the wording from the NFHS rulebook:

4-40-7 (Screens)

"A player who is screened within his visual field is expected to avoid contact by going around the screener. In cases of screens outside the visual field, the opponent make make inadvertent contact with the screener and if the opponent is running rapidly, the contact may be severe. Such a case is to be ruled as incidental contact provided the opponent stops or attempts to stop on contact and moves around the screen, and provided the screener is not displaced if he has the ball."