JACKSON, Wyo. (AP) — A Wyoming school has canceled a planned appearance by a Christian abstinence advocate.

The Teton County School District canceled Shelly Donahue's speech after a number of parents complained that her message is unscientific, ineffective and likely to give students a bad impression of themselves and each other.

Donahue may be best known for a demonstration in which she sticks a piece of tape to a boy's arm. She compares the tape to that of a promiscuous girl, whose tape becomes less transparent as it's shared with other peoples' arms.

The program wouldn't have used tax dollars and parents were given the choice to opt out. It was offered by Turning Point Pregnancy Resource Center, an organization with an anti-abortion message.