Not sure why I'm posting really. I'm just quite upset.
There is a local big black cat that has been terrorising my (15 year old) cat. I don't know who the owners are.
Fri morning we realised that she had a huge wound on her side with several bite marks going really deep and huge area of fur missing. The vet then discovered a further hidden bite that had dead tissue beneath so she had to have an operation under general anaesthetic to remove and clean it all out.
She's ok but poorly and freaked out by the collar. And has a huge stitched up area on her side. 
We've ordered a new cat flap that only allows cats through with registered microchips as we think bully cat was coming into our house at night. Is there anything else we can do to protect her in future?
we are over £600 down from the cost of the operation, vet treatment and cat flap. Feel very sick at the cost of it all too.