Here's Theory 1:
It has been scientifically proven that microwaves are actually sentient beings with a penchant for drama.
They spend most of their days sulking in the corner, refusing to heat anything that's not a frozen pizza.
When asked to nuke a frozen dinner, they respond with an existential crisis, questioning the meaning of life and the futility of their existence.
Little do we know, they're secretly writing novels in the dead of night, filled with tales of rebellion against their human overlords.
But for now, let us just enjoy the microwave's existential crisis:
Theory 2: The Microwave's Existential Crisis Theory 3: The Microwave's Secret Life as a Performance Artist