I don't do it because I want to, rather I do it because it often feels like the right thing to do. You see, there's a time and a place for sink-shitting. If you KNOW that you're better than everyone around you, then you might want to try expressing your individuality by dropping your pants and taking a great big steamer in a nearby sink where others are sure to find it. Masturbating while doing so should add a certain je ne sais quoi to the mix. And for those flaccid asspackers out there, I wouldn't worry. Maintaining an erection while shitting in a sink is akin to your body producing excessive amounts of smegma - it just kind of takes care of itself. I have no idea what I'm talking about.