What is the best tip to prevent drunk driving?

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This table lists all the recorded votes for this poll. If anonymous users are allowed to vote, they will be identified by the IP address of the computer they used when they voted.
VisitorVoteTimestampsort descending
72.158.115.2Sleep over.Wed, 12/31/1969 - 19:00
72.23.33.35Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
72.237.88.126Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
72.252.30.145Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
72.70.222.124Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
72.76.241.40Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
72.77.216.30Take the keys away from a person.Wed, 12/31/1969 - 19:00
72.86.176.79Encourage someone to call a taxi.Wed, 12/31/1969 - 19:00
74.103.12.198Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
74.112.136.12Take the keys away from a person.Wed, 12/31/1969 - 19:00
74.129.60.3Sleep over.Wed, 12/31/1969 - 19:00
75.197.205.12Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
75.221.90.41Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
75.25.129.231Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
76.91.255.197Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
78.133.72.52Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00
78.176.28.174Sleep over.Wed, 12/31/1969 - 19:00
8.15.253.10Take the keys away from a person.Wed, 12/31/1969 - 19:00
84.172.103.6Take the keys away from a person.Wed, 12/31/1969 - 19:00
84.232.59.27Offer to be the responsible driver for the night.Wed, 12/31/1969 - 19:00