How long should a shower last?
When I jump in the shower, its usually All business. jump in, throw soap/shampoo in, hose off, get out. Usually, can be done in 3 to 5 minutes. On the other hand, I have a couple roommates who literally run the shower until they manage to ice over my Gas water heater.
I can understand taking a little more time than I do, but half an hour in the shower? I'd get bored without a book, and lets face it: books are not compatible with showers for some reason.