Ethan slowly approached Gaia. "I'm glad you recognise me. Now, I'll have a look at your back," he eyed her tail, "so keep your tail in check."
That sound was annoying, and maybe it affected her more; just like dogs could hear high whistles and didn't deal well with fireworks. But where did it come from? He had seen her gnaw at something. A bug between her scales? 
He carefully went around her. "Where is it troubling you?" he asked her.

Morrison shook Harriets hand off his arm, glaring at her. He didn't need an alien who was completely dark and spoke in a weird language touching him.