The oven would be set to maximum incineration, and yes, there would be maniacal laughter followed by air freshener, and window opening. Cause I'm sure roast rat smells awful.
If I had rats living in my house, and I wanted to get rid of them, I would do so by any means needed, cruel or humane, if something is on my property without my permission, it either leaves or dies.
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WILL SHOWER AND POST PICS FOR GURU