[hiq]

> Because then you can't negotiate.

Why not? Maybe your position is not as strong as having another actual offer, but that doesn't mean you cannot negotiate at all. In any case it's hard to have all your offers all at the same time, but you could still have an offer from Company C before Company A (if you knew you'd be interested in A even before the application, you probably want to practice with another company), giving you some reference.