You'd be surprised how many people here don't agree.

[but good ok]

I would normally offer a cut of the profit from this job, but there won't be a tangible one aside from giving back to the effort of stopping the infection.

[he considers for a moment.]

I'll give you $100 up front and another $300 for successful completion.

[kaz does expect her to push back, that's how negotiation works. but here's his starting offer.]