Dementia or Demented

The other day I went to the Doctor for my annual wellness physical.
One thing they check on for us old Farts is for the oncoming signs
of dementia. They give you a blank piece of paper and ask you to
draw a clock with a certain time. The other thing they do is say
three words and ask you to remember them when they ask for them a
little later. My three words were "village kitchen and baby".
The nurse came back and asked me for the three words. I told her,
"they cook the babies in the village kitchen". I guess I passed
the dementia test but failed the demented test.