The saga just continues, last night I had 2 possums up the top of the Liquid Amber tree, the dog had chased them up there. After banging on the corrugated iron around the trunk and making a lot of noise and the 2 possums hanging on for dear life at the very top of the tree, it was raining and about 10pm I grabbed a saw and chopped down a bottle brush tree that I think they must have been using to get up into the Liquid Amber. At this time of the year the tree has no leaves so I was able to see them easily with my spotlight. I obviously had them spooked because even though it was raining I kept going back out to see if they were game enough to come down but I gave up about 11.30pm and they still hadn't moved. I wonder if this time they might come to realize that coming into my backyard is probably not a wise thing to do. I'm still not sure how they get over my fences around the yard because they are all corrugated iron sheets standing vertically and are razor sharp as the have all been cut with a grinder