I used to do that – when I was a little kid!! I broke the tether a long time ago. Now when I brush, I usually go sit at my computer and surf the web, or do something productive.
I seem to recall that Junkii found that strange when we first started dating, but he has long since been converted, and usually stands behind me watching me surf the web.
So, do you wander while brushing, or are you tethered to the sink?