Observation platform

Dear Pablo,

This is my observation deck where I sit to do my research on the hygeine habits of humans. From here I can look clear around to the left where Tracy keeps some of her clothing on the floor and clear to the right where Denis does his morning preparations. But straight ahead is where the main research takes place - I can see directly into the bathroom sink area. I have been studying Tracy for about five years now and Denis for three, and I still haven't figured them out. Here are some observations I have made:
1. bathing takes place in an enclosed area of the bathroom where they stand under a torrent of water. This seems terribly unpleasant to me, but they seem to emerge quite pleased with themselves.
2. bathing takes place sometimes in the morning, sometimes in the afternoon and sometimes in the evening. There doesn't seem to be a predictable pattern to it at all.
3. various instruments are used on their head fur - creams, lotions, sticks and a wand that makes a terrible loud whooshing noise. (Tracy uses all of these, but Denis just uses a simple stick)
4. they both use the deodorant sticks under their arms, but they use different kinds - seems kind of frivolous.
5. they insert strings and sticks into their mouths. This is done mostly at night before they go to bed, but sometimes during the day. I haven't figured that one out at all.
6. Tracy takes great care to put various creams and potions onto her face, but Denis doesn't bother with his face at all.

Has anyone else made any observations about humans? Or have some suggestions as to conclusions that we can reach?