When Reiko realized that the man had a gun hidden in the most useless place ever, she began to understand the concept of human extinction. No wonder she hadn't seen any more survivors yet; they were likely all Monster Chow after screwing up their priorities. Weapons were more important now than anything that could have been in the bag... Even so, she chided herself for not noticing its presence sooner. She would do well to remember that anyone else with a weapon was initially as dangerous as a monster, and allowing her observational skills to slip - even during a situation like this - was nearly as stupid as shoving her gun into a hard-to-reach place and hoping she didn't encounter any trouble between there and the next shelter.
She was about to gesture for the man to take cover first, not trusting that he didn't also have the thought of leaving behind someone for the monster to eat while he ran away, but the other man - and her head was getting muddled trying to keep them separate - caught her attention again. Whatever he had done, it was impressive; but it also put herself and Monster Bait at risk. So much for taking cover and waiting it out.
For a brief second or two, she aimed her gun toward the human champagne cork (the best analogy her mind could form at the time) and considered killing him for ruining the chance to be ignored while he was ripped into tiny little pieces of human carcass. But once she realized that she was now closest to the monster, running jumped to the top of the priority list and she took off without even looking at the man nearest to her. (Which may not have been very near at all, by his own choosing.) As much as she'd have loved to drive away, she couldn't imagine that there was enough time to bother with cranking, putting into gear, and all those other nuances involved with motorcycles. There was just one problem - one unfortunate little problem that made her want even more to shoot someone other than just the monster: Reiko was the shortest in the little group of three. In order to keep up, she had to put more effort and energy into running or be the unlucky sap closest to Mr. Tall, Monstrous, and Angry.
"I should fucking kill you for this!" She yelled at the one she'd once deemed suicidal, managing to catch up as best she could - which still left her a pace or two behind him. It was likely the best she'd be able to do, though, considering that he had quite a bit of height (and therefore leg-length) over her.