"Whoa, whoa!" Venus doesn't pursue Gary, because she knows better than to go running towards a scared person flailing around when they think you're going to rip their head off (literally). "Chill out, kid! I've got a hit list this time and you're not on it!"

And after watching that abysmal display of prowess, she'd feel kind of bad killing him anyway. It'd be kind of like kicking a puppy. With combat boots.

She doesn't approach. Instead she just keeps her hands up in a 'calm down' pose and relaxes her shoulders.