Banru had come just as Sal called and the asexual murderer couldn't be happier. Morana hadn't moved much at all since he dug her face into the side of the tree, but he hadn't expected her to anyway. She was like a squirrel frozen and doe-eyed in the middle of the road with a car driving straight for it. She wasn't going anywhere.
On that thought, Sal released his hand from her face and turned to fully confront Banru, taking two steps forward. Because Morana was behind Sal now, the murderer winked coyly at the immortal.
"Banru. What a pleasant surprise." Sal drawled. "I thought you were joking when you told me to leave Asgard alone. Guess I was wrong." That said, Sal drew his gun (safety on, not that she'd know) and pointed it directly at Morana's head without turning around. He knew by instinct that he was too close to miss. "You're a bright boy; you know what this means. One more step, and somebody loses their face."
It didn't matter how Banru chose to react - whether it be verbal threats or an actual assault - Sal looked forward to the results.