Next Door But One's Cat...

...Who used to be Next Door's Cat, but Mrs Next Door moved house and the cat stayed.

He's a darling cat (though he did bite me last year. Not a serious bite. Just a putting-me-in-my-place bite. Because he's Top Cat.
Oh noooo...
There's an ear worm for all night then :

Top Cat! The most effectual Top Cat! Whose intellectual close friends get to call him T.C. Providing it's with dignity. Top Cat!).

Apologies.