My mature cat was in a fight recently- we’d let her out in the evening and she came in w her fur flying about and not happy. We had the TV on so hadn’t heard it, unfortunately.
It injured her quite badly - I’ll be off to vet again today - and am now thinking to not let her out (we don’t have a flap) unless I’m there to supervise. I’m home a lot so can let her go for a bit to do her business and eat a bit of grass!