Dean Jones says:

"Sure.  Take all the time you want...

However, I do have other meetings throughout the day.  If you cannot agree right now, then I'll have to lower my salary offer from the 55th percentile to the 45th percentile.  It is a sort of analogous to a  "restocking fee" for having to keep my other job candidates 'on the line,' waiting, while you make up your mind..."

Your Response:

1.  OK.  I'll accept your offer (at the 55th percentile).

2.  I really need more time to think about this...