Until somebody needs to die. If he didn't sound like every brooding mercenary hanging around the slums of Midgar looking for work, that might have thrown Aerith, but she's already putting a plan together in her head - one that, ideally doesn't involve murder.

"What about if probably nobody needs to die? Still want to help me? We can go tonight." She can't imagine anybody needing to die over some stolen bushes, but for the sake of getting him to agree, she'll be diplomatic.