Fics like Platypus Gone Rogue

Heinz Doofenshmirtz opens his door in the middle of the night to find Perry The Platypus standing in the hall. Along with a family of five that looks like they've been in a firefight, because they have. And for some reason Heinz is now the only person Perry can turn to? Alternatively: Confusion and awkwardness ensue as the two halves of Perry's life collide in arguably the worst way ever

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