Both of my lab mixes will ONLY drink out of the toilet in the house. The only time they will drink out of a bowl or bucket is outside.
OTOH, I've only had one dog in my life that didn't drink out of the toilet.....and she was a dachsund :)
Gets a lot of laughs at the hunting club - her personal chamois ear-drying towel, her personal folding chair, her Hella cooling fan mounted on her crate, her designer neoprene wet suit for chilly water (well, actually, all the hunting dogs have one of those).
All thoughts of royalty are cast aside when she sees a duck fall out of the sky, though . . .
Yeah, but if she had had a stepladder...