Had it happen with a few animals. All of them ended up adopted after the week grace period so never ended up having to bring them home again. Which is still a happy ending
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Edit: I'm curious what person I pissed off by helping animals get adopted >.>
Well what tended to happen was we'd agree to a 1 week period to give any owners a chance to show up. After that, if no one wanted them, we'd bring them home. It's not that we didn't want Them, but at the time my family already had several pets so we weren't actually LOOKING for more. If no one had taken them we absolutely would have, and I was always somewhat bittersweet to hear they'd gone haha.
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Edit: I'm curious what person I pissed off by helping animals get adopted >.>