Spying over the fence for the past couple days, I have noted that the CPN is not going to work and spends the whole day (outdoors, of course) in his pyjamas and a robe. While this type of behaviour could indicate that he has entered the Hefner Zone, I do not believe this to be the case.
Yesterday, while CPN Wife and CPN Daughter ate a normal supper, CPN himself dined on toast and soup. So clearly, he has recently undergone surgery of some kind.
In the immortal words of Basil Fawlty: Let's hope it's nothing trivial.