Splish-splash, I was ... taking a bath?

S has some very interesting bathroom habits. I can't really figure them out, and will take any suggestions anyone has for what is going on. More than once a day, S comes out of his room with a bath towel around his neck. Every time he does I think "Thank God! He's going to shower." He then says to whoever is in the house, "I'm going to go in the bathroom. Do you need to get in there first?" It's really rather polite of him, actually. He then proceeds to lock himself in the bathroom for 45 minutes or so, running the water and making all sorts of crazy splashing sounds. You'd have to think he's showering or taking a bath or something. His face is definitely wet when he comes out, and usually his hair is as well. However, if you go into the bathroom after all is this, the shower and tub are completely dry. Of course, he still smells as well.

This isn't to say that he never showers. I believe he does. Occasionally. But I'm dying to know what he does with all of this time in the bathroom. Any ideas out there? I have a couple.

He may have a rubber ducky hidden someplace that he plays with in the sink. The counter around his sink (thank God he has his own sink. He hasn't cleaned it in the entire time he has lived there and I refuse to do it.) is always completely soaked, so it's clearly the sink that produces all of this splashy water.

He may also be playing war games or something (You sunk my battleship!). I've seen no evidence of battleships or destroyers though.

The water could be a mask for more sinister "personal" activities. Oh God, tell me it's not that one!

He does have some weird de-stress, detoxification rituals that he goes through as well. (More details some other day.) Maybe the splashing and the water sounds help him with those? Like Enya music? I'm not sure I buy that though, as he usually does them in the living room as well.

So what am I left with? Well, I have a dirty bathroom, which proves that there is no truth to the myth that if one thing gets dirtier and more smelly, that something else gets cleaner and less smelly. I'm left with a still smelly S, and a whole bunch of questions about what the hell is going on in that room for all that time.

Seriously. Suggestions? Anyone? Anyone? Bueller?