My grandmother actually sort of did that. Well, not really. Her house wasn't burned, but it was knocked down. And not to get rid of the mice or even because it was condemned. New owners had bought her property, and there was two houses on it. The owners kept the newer home down the hill and had the older one up the hill flattened. Out came all the mice just the same. :)
Yeah. It's probably last resort time at this point with the spam. More than one person seems to be pulling their hair out about it. :)