Two friends were going on a road trip to Florida. A neighbor told them that they'd be fine as long as they paid close attention to the road signs along the way.
They'd driven 30 miles when they saw one that read, "Clean Restrooms Ahead".
Two months later they arrived in Florida exhausted, having used up 86 bottles of Windex, 267 rolls of paper towels, and three cases of toilet-bowl cleaner. Total restrooms cleaned: 450.