Um - OK, I'll bite. I like to let the disgusting side of my nature air out to play every now and then, and fellow teachers at work don't seem to like it when I do it there...
What the heck, you could just switch between the two uses depending on where you are. Hey, why bother even washing
it, just fill it and recycle it - recycling is the new cool, nowadays. Since it is already close to the bathroom, you could run it to your basin and brush your teeth in it. Perhaps you could wash your girlfriend's hair in it, I'll bet she's after more fresh water..... Or you could bottle it and sell it in India
. Serve to the mother-in-law. Even better, I'll send my Principal on a visit to you.
Please note: any characters, places or suggestions in this post are entirely fictional, and the poster takes absolutely no responsibility for any illnesses or diseases caused by some idiot adopting the suggested fictitious ideas.