Midday after working outside and getting really dirty or sweaty, when it's still bright enough outside that you don't have to turn the lights on and the bathroom is only lit from the window, you're already so hot from working that the water has to start out lukewarm, and also you have a shower beer. My favorite kind.
And when you first get in, the water is noticeably warmer by the time it hits your feet because you're so warm. When your feet start getting the cool water, then and only then are you done.
Damn. You've really elegantly explained one of my favourite things. It's winter where I am, so I'm doing the 'more than one during the day just to warm up, temperature equal to surface of the sun' showers. Can't wait for the midday beer shower. So many months away.
My dad actually installed a hot water line to the backyard garden hose at my childhood home to make it less uncomfortable to hose the kids down when we got home from the beach.
The steaming hot sick shower, when you are in the midst of a cold/flu and you just stand there with the water turned as hot as it will go, while you try to clear your poor sinuses.
quick daily shower just to get the sweat off
luxurious spa shower where you do a face and hair mask, shave, contemplate, scrub every inch of your body, etc.