Petey is a fanatic about toilet water if I leave the lid up. I've learned to keep it down and put the occasional ice cube in her water bowl.
She likes that more than her dinner; mostly cause Wilbur hogs her food - to the point of puking (getting old). Poor Petey gets to lick the gravy, than the punk-butt Wilber has to eat hers. She just moves over to the ice-cold water. I would worry, but she's 13 pounds, so surely not starving.