This sounds interesting. For the people that do this, what does it feel like? Why is it so enjoyable?
Hmm...for me I think the enjoyment stems from have two kind of disparate events occurring at the same time. Your body is like "whoa, hot and soothing meets cold and refreshing, what a nice reward" and your brain is going "WTF is going on here body?"
It's the exact same concept as drinking in sauna/a hot-tub/a hot bath, really.
showerbeer is a start, but bathbeers+joint is more my speed. kind of a 'the dude' but more redneck and less creamer. a bowl is even better because once it's packed you don't have to worry about wet fingers ruining it.
I enjoy Creemore a lot. Guiness, a few micro-brewery names from up here in Ontario/Quebec (Church Key, Flying Monkey, St. Ambroise), hard ciders (not really beer, but whatever). All would go great with a shower.