I think shower time is when I philosophize about my actions and motives, either during the day, week, or month. It's usually the time I consider those human element things like values, how I come across, what I did stupidly. For some reason I actually have a conscience in there. I consider the cleansing metaphorically as well.
Or I just speculate about whatever interesting topic has been on my mind. Depends on how much I've engaged with people throughout the day.
My cold, snide, intellectual life is just a veneer, behind which lies the plywood of loneliness.
I hum/moan/yell the Pirates of the Carribean songs a lot in the shower..
But usually it's just what's randomly stuck in my head. I usually plug in my iPod and listen to it in the bathroom when I'm in the shower.
Is it that by its indefiniteness it shadows forth the heartless voids and immensities of the universe, and thus stabs us from behind with the thought of annihilation, when beholding the white depths of the milky way?