As a promotional gimmick, a Greeley, Colorado, GM dealership made this promise:
Buy a new car from Wednesday, May 13, through Saturday, May 16. Then keep an eye on rainfall totals between 7 a.m. and 7 p.m. on Memorial Day, Monday, May 25. If it rains at least one inch at the official weather station at the Greeley/Weld County Airport, then each one of those buyers will get his money back--and keep the car as well.
The dealer's sales totals for the promotional period were about $800,000. Yet Lee Yoder, owner of Weld County Garage, appears unconcerned, claiming to have purchased insurance on the promotion in the event of a literal rainy day on Monday.