The pet cat name "Tiddles" originated back in biblical times, Noah of Arc fame to be specific.
Once he'd finished the Arc he had a bit of time & wood & bits left over so he made a few luxury items for the arc, one such luxury item was an aquarium, it was a nice touch but he hadn't foreseen that his pet cat would treat it as an all you can eat buffet until one morning he saw the aquarium empty & a dozing fat cat besides it.
"Where's all my tiddlers gone?", cried Noah.
Then he noticed the cat & from whence on all cats in the Noah Archold were known as Tiddles.
G-Bo(re)