If you are making a number two and there is no toilet paper but there IS an old t-shirt lying around, you MAY be tempted to use that old t-shirt to wipe your butt.
But think ahead, dear reader. Then what? What happens the second after you've cleaned yourself up? What do you DO with the t-shirt?
So, thanks, thoughtful-co-worker-who-left-his-old-t-shirt-draped-over-the-handicap-bar but I think we'll be just fine without your v-neck.