Ah man i hate that question. honestly, I don't mind if I work for you or one of the other 5 jobs I applied for, I just need a job and you have vacancies
i usually make some crap up about how i love the type of job and think I would make a difference here or something along those lines.
I have never yet actually applied for a job I genuinely want, just ones I can do so I can get some money coming in