If you use a shower that other people use, it's just rude to **** where they are gonna stand.
You may as well wipe your snot on to the back of their shirt while you're at it.
And if you do have a shower no one else uses... Your still a lazy *** of a bitch if you can't use the toilet.
How long are you in that shower for? Do you not need to **** before you go in there?
"Uh oh, I've been in this shower for so long that all of a sudden I need to pee. I'm gonna be another 30 minutes in here, so I may as well just do it because I'm too fucking lazy to use the fucking toilet"