In popular culture: https://achristmasstory.fandom.com/wiki/The_Bumpus_Hounds
It's a cultural thing; I'm not arguing there's some kind of "dog toxoplasmosis". Wikipedia says the evidence for (feline) toxoplasmosis causing crazy cat ladies is not definitive, either. https://en.m.wikipedia.org/wiki/Toxoplasmosis#Society_and_cu...