Mimi's quirks (part 345)

Mimi has this fascinating ritual. She starts eating out of her bowl, halfway through, she recoils in horror, while letting out a whimper. Then, over the course of the next few seconds, she backs away from the bowl, her eyes fixed on it.

This perplexed me for a while. I thought maybe there was a cockroach that scared her. Eventually, it became clear:

Mimi would eat until the bottom of the bowl was exposed; she'd see her own reflection. She'd think it was another dog that suddenly appeared from beneath her food and she'd be startled.