I have a new theory about the creation of the Hokey Pokey; the person who composed the lyrics was attempting to shower without a water heater!
Put your right arm in, put your right arm out, put your right arm in and shake it all about. Because you’re freezing and that keeps you warmer.
I have as good a chance of being right as other people. According to Wikipedia, there are many divergent accounts of the origin.
Image is of the Thermocouple that did not fix our water heater, but was a good first guess.