What would you do if your pet dog or cat suddenly started to talk to you, but nobody else could hear it? Would you assume you'd gone mad or simply be happy for the company? Would you try to convince your friends and family or would you be satisfied keeping it to yourself?
...what if this already happens? because it totally does.
Loki lets me know if he's hot or needs to go outside or scared. Sometimes he tells me he's happy too. Athena screams at me if she's hungry.
So I think it does happen, and I don't care if people don't believe me because I know what my animals want/need.