Melissa's octopus and other unsuitable pets

"There are certain animals that make suitable pets, like a cat, a dog or a guinea pig. Then there are other animals that definitely make unsuitable pets, like an octopus, a warthog or an elephant. They are much too large, too messy and, well, just a tad free-spirited. They also have a tendency to break things ... like floors, ceilings and tables. But can you guess what makes the most unsuitable pet ever? Here's a clue ... he has a long, scaly green tail and very sharp teeth"--Publisher's website.