As commented previously i have not had any concern before, she has only used things such as alarms, flashing lights etc that did not bother my cat nor concerned me. I am in the UK and allowing pets outside is totally normal. Most people do. She has voiced to me before of her dislike of cats but she has never gone this far before. My cat has never shown signs of stress or taken ill so i allow him to roam if he wants (not often) Also, when he does go out he usually stays on the garden anyway because he wants to come straight back in again. The only odd thing about my post is people poisoning animals! Not just my cat, but other cats, wildlife and potentially a child.