all you need do is bring up David Nutt as the drug tsar and his findings, who was then sacked by Blair after doing the required research and the gov disagreed with his findings.
amazon boxes ftw, mine will also curl up on a piece of paper, preferably the brown packing paper that comes in amazon boxes.
the only time i've ever got them in a fancy new cat-bed, is to take the cushion out of it, spend a few days sitting on it and then put it back. then they'll use it.