Who Does Number Two Work For?

Okay, so something strange is happening in my upstairs bathroom. Pardon me for being so blunt, but there has been poop "mysteriously" appearing in the toilet. "How does that happen?" you may ask. If you've never been in my house, the kids' bedrooms and bathroom are upstairs and our master is on the main floor. Bryan and I never use the upstairs bathroom, but in the past few weeks, we have discovered "mystery poop" in the upstairs toilet, which noone in my house will take responsibility for. Jena swears she flushes and Brayden insists he doesn't use that bathroom (unless he did it when he was sleepwalking, which is his excuse for lots of things since he has been known to pee in strange places while sleepwalking). So unless Izzy has magically potty-trained herself and is holding out on us or the cats have learned how to use the toilet, we have a mysterious visitor who likes to occasionally leave a present in our toilet. As I think about this situation and try to solve the case of the mystery pooper, I'm reminded of the bathroom scene from Austin Powers with Tom Arnold and Mike Myers . . . "WHO DOES NUMBER TWO WORK FOR?" Apparently in our house, number two doesn't work for anyone.