"But more interestingly, a HUGE turn off for me is that dogs drink OUT of the toilet I crap in"
That is more than simple to avoid. Close the lid. Done and done. Dogs prefer toliets because people do not refresh dog bowls often enough, where as the toliet is flushed and has fresh water everyday. Since I started giving my dogs water bowl a quick rinse each and every morning, she tries to get water from the toliet a lot less.