Whether you're going green and don't want to waste more money with flushing, you can't be bothered to get out of the shower or you just enjoy it, peeing in the shower is sort of fine when you're by yourself, so why is there still a big taboo attached to it? If you happen to be showering with someone else and feel your bladder bursting, ask their permission first before you let loose, because they might not be into that kind of thing.
