Noon - 1 pm
Second exercise! You'll need a towel. Every 15 minutes, spread the towel somewhere on the ground/yourself and go on it. There's a catch though: you have to be in a completely different position each time! Standing and squatting will probably be two of them, but what will the other two be? Laying down? Sitting isn't an option this time, but maybe you always wanted to pee like a dog.
Oh, and you have to be naked the entire hour. If you dare, open the curtains too.
If you don't open the curtains, drink an extra 250 ml. Plus your normal 500 ml. If you live on the ground floor next to a (busy) street, or otherwise could get in real trouble, you don't have to drink the additional water.
Oh, and if you feel like cleaning again, go an extra time. I did warn you that your room would be getting dirty!