I posted a note about this, then I had a re-read and a re-think and deleted it.
Still thinking, bear with me. I may have to do some testing over the next day or two....
:O)

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)