Okay, so first of all Julian is a massive jerk and definitely also a creep sometimes. He's under the impression that people being afraid of you is the same thing as people respecting you (which he wants), and as a result a lot of his interactions are... well, he's definitely a bully. The fact that he works in a position of high authority (a scientist at Spectrum Labs) doesn't help matters any, and he has a habit of not being very nice to those under Spectrum's charge. Jawz occasionally falls under that category (Spectrum has some.. scientific interest in her for one reason or another, something to do with her shapeshifting), and she's definitely had to deal with Julian Being A Creep on far too many occasions. Even if their run-ins aren't very frequent, there's still something most unpleasant about being snuck up on, stabbed with a syringe full of sedatives and waking up someplace you hate.