Robust Rhino Resting but Risking Reaction?

You know how much I love to crop. This image was not cropped vertically at all. He was scary close to the camera, and me!

This image shot with the Sony 135mm f/1.8 GM on a Sony A1, at ISO 100 f/2.8 1/640. Only processing after setting white balance was cropping it a little horizontally.