A Penguin
A weird disease where people get obsessed with penguins after being nibbled on by one, like Linus got obsessed with penguins and made them the mascot for his computer thing.
"I got nibbled by a penguin and now I can’t stop thinking about them."
My dog got nibbled by a penguin and now he’s obsessed."
I got nibbled by a penguin and now I can’t sleep."