The floating alligator (named "Alli" by a friend) has been living in our pool for about a week. He was purchased to, hopefully, keep the scores of iguanas who inhabit the neighbouring empty yards and our dock out of the pool. That seems to have worked. However, Alli seems to have made friends with the small lizards, who do not seem to be at all concerned. Three of the contractors who have been working in the house on a major renovation were quite taken aback, so it also appears to be working with people.