I would never work with anyone who even proposes such terms. Not because I don't want to pay on time (we always do) but because those terms are unprofessional,

I would never work with anyone who even proposes such terms. Not because I don't want to pay on time (we always do) but because those terms are unprofessional, to put it mildly. If you want to be treated like a pro, act like one. Update: Having looked at your resumé, I probably wouldn't work with you anyway.