None of my herps are terribly intimidating. The nile monitor I rescued/rehomed was intimidating for a minute, but it became less so once it became apparent he was more nervous than anything. The most intimidating snake I have is a normal male BP that is ALWAYS hungry no matter how much he gets fed... and he'll shoot out of the tub if you give him half an inch. He's nabbed me in the face, and nearly gotten the curious passing cat a few times.

The most intimidating species I own is by far hands down the Timneh African Grey parrot... and I'd much rather be bit by any of the snakes, including the 6ft dumerils or the hognose, over this bird. He's intimidating because he's smart, and he has learned how to trick us every so often into trusting him. Most of the time he's very well mannered, but I think he finds it funny to fool us into getting bit