Water monitor lizard (Varanus varanus) baby that wandered into our house... he was very cute so we threw him over the wall. The dogs may have et him. Also, we have another monitor (land monitor) living in my lab roof (which ill get a picture of one day), and he/she has been in our garden since it was no bigger than my hand (like this fellow). Now of course its not so cute at about 2 feet...