Yes, you're right. It's the were-koala. Dangerous, ubiquitous, changing the landscape of our nation. For tips on how to manage this hazard check out the upcoming Shifters anthology, edited by Robert Helmbrecht, published by Hazardous Press and featuring my story Your Guide to Living With Were-Koalas. Other contributers include Amanda Pillar, David Wellington, Jay Wilburn, Adam Millard, Doug Murano, Aaron Gudmunson, Tara Fox Hall, Cameron Suey, D. Alexander Ward, Max Booth, Dawn Napier, Chantal Boudreau, Brent Nichols, Beryl Knight, Steve Voelker, and Chris Larsen.
Here's the cover by Glen Chadbourne.