I haven't heard Mr Mouse since his raid on my paracetamol supply and I no longer have the feeling that I'm being watched whenever I'm in the study so I kind of think he is deceased. I am just waiting for the smell, which, sadly, I recognise only too well having had many previous mice die behind the skirting boards.
The pest control man at '"Chicken Club" (first rule of Chicken Club, never talk about Chicken Club ) said that released mice just come back into the house and he had sometimes put orange spots on their backs to prove the fact to householders. He said they soon believed him when they kept catching the orange spotted mouse in their trap over and over