Had this damned dog who was a wonderful pet, except he would drink out of the toilet. Tried to train him otherwise, and it just wasn't happening. New rule of the house: lid down on the toilets...no excuses.
Yes the dog licks his a$$ while cleaning himself, but it's just not nearly as gross.
my cats drink out of the toilet - I just keep them flushed.
saves me having to bend over and fill thier water dish.
Easiest way to keep a dog from drinking out of the toilet: get a dachshund!
Works for us!