My beloved rats have gone on to a higher level. They have now taken to hijacking whole bars of soap from the bathroom for their dinner. I can't for the life of me imagine what kind of nutrition they derive from soap bars, though.
I replaced the bar of soap with a king-size bar. It looks like their soapy diet hasn't made them stronger; incapable of lugging the larger bar, they have taken to eating at the restaurant instead of ordering take-aways: I found a couple of rodent teeth marks on the bar today.
Hope I don't turn into Ratman.