Which of the following is not a way to prevent a friend from driving while intoxicated?

To prevent someone from drinking and driving, it is a good idea to arrange an alternative way for them to get home, involve them in other activities to slow the pace of their drinking, use any available excuse to keep them from leaving, and recruit friends to help apply peer pressure.

• Arrange a safe ride home for them.
• Get them involved in activities to slow their drinking and keep them busy while they sober up.
• Make them wait 15 minutes after their last drink before driving.
• Get other friends involved in stopping your friend from driving.