He will foster his anger and marmot-hatred for his whole life and, as an adult, he will lead his country into an all out war against the marmots, killing millions of them in special fenced institutions.
He'll become like the Batman, but instead of the bat persona being centered around fear and darkness, it'll be around cuteness and not making any sudden movements. Consequently his crime fighting career will be brief and uneventful.
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Bet they would make great long range rifle targets.