I can only say this is the culprit!
I still wonder how he got into the patio. The door to the balcony is always shut. He's not allowed in there anymore because he did something recently that almost gave me a heart attack.
I was pottering around my garden one day and Rusty was chasing lizards underneath some plants. When I got back into the house, he wasn't there. I couldn't find him in the garden either. Where could he be? I kept calling and calling until I began to panic.
Then I looked out of my patio and found him perched precariously on a narrow ledge, walking away from me. The ledge is two-storey high. If he falls, he'll be badly injured or worse still, dead!
I have to make a wiremesh fence around the garden soon.