What is a reasonable length of time for a shower?

[Pico and ME]

Originally Posted by glatt

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When I was in high school, my brother would take long showers in the morning and use up all the hot water before I would get a chance, so I would go down into the basement and turn the hot water valve off on him when he was in the shower too long. I had to stop doing it to him though. He would return the favor when I was in there.

LOL! I've been tempted.