You can't in schools, as it would violate an individuals right to have religion thrust upon them (same reason they don't allow praying during class hours). (religion.blogs.cnn.com)
My mom hated cooking during a heat spell for the very same reasons I do.... (overthehillandonaroll.com)
Same reason I don't overly trust realtors, there are lots of good one's out there, but ultimately they make money when you spend money. (biggerpockets.com)