My "favourite" one is bulk insulation for domestic dwellings. https://en.wikipedia.org/wiki/Mr_Fluffy https://en.wikipedia.org/wiki/Mr_Fluffy Just get a big t

My "favourite" one is bulk insulation for domestic dwellings. https://en.wikipedia.org/wiki/Mr_Fluffy https://en.wikipedia.org/wiki/Mr_Fluffy Just get a big tub of loose asbestos fibre and use a blower to fill the roof space. What could go wrong?