There are several reasons for having to take a cold shower.
None of them are very good ones, in my opinion.
There is the cold shower taken to cool off unsatisfied ardor.
There is the cold shower that is required when the pilot is out on your water heater.
And then there is the cold shower that you have to take in the morning when your teenage daughter has already used all the hot water.
Need I say more?
Yeah, I didn't think so either.