It took him a second to realize what she had done, and not the one for these types of moments, he backed up and forcefully shook with as much effort that'd guarantee her to go flying off his legs. She was just a kid, scared of her surroundings, but even still, it was annoying.
"As long as you promise not to do that again," John replied and tried to regain is posture, if not ego."
Once he'd get ahold of the brotherhood, he'd drop her off with them and let the others train and deal with this girl.