We have a bathroom just off our living room that has a very large mirror above the vanity. The cat likes to get drinks out of the bathroom sink (we’re trained).

If she sits on a corner of the vanity when the bathroom door is open, she can see the living room in the mirror. She will stare into the mirror until she sees someone look at her. When she catches your eye, the meowing to turn on the sink begins.

She also stares at herself in a hallway mirror a lot. We think she thinks she’s pretty.

There really is a conventional scientific view that cats are not capable of passing typical mirror-related self-awareness tests.

But it strikes me that the problem might be that the tests just aren't designed to test cats.

After realizing the mirror could be used to spot a potential assailant and take evasive measures, they stopped trying to get each other at the doorway to my mother's bedroom.