Cats and cables
One of my old cats liked to chew on network cables as well as the occasional USB charging cable. Her teeth were OK as she happily ate kibbles, so I guess she just liked the taste of them. Never any marks on power cables though so maybe she'd learnt to leave them alone with her previous owner.
Mentioned this to the chap behind the counter when I was stocking up on unchewed cables one day and he said 'yeah, you're not the first customer to say that'.