errr hang on here - you cannot be offside if you are in possession of the ball. If you were in an offside position before receiving the ball then you have committed an offside offense - with one possible exception i can think of under recent-ish rule changes.
Being in an offside position means being in the opponent's half of the pitch, and between (in respect of the length of the pitch only) the ball and the opponent's goal, while less than 2 opponents are between you and their goal.
Someone can find themselves in an offside position with the ball legitimately either if he has run with the ball from an onside position or if he was onside before the ball was passed to him.
So in answer to the first question - you could say as long as the first guy passes the ball backwards to his team mate (or in fact in any direction as long as when it is kicked the ball is between the receiver and the goal) then this an example of the exception.
However - as i understand the definition of an offiside position to include the position of the ball then by definition the receiver would not be in an offside position anyway.
Unless the second question referred to this, is the exception you are thinking of when a player intercepts an opponent's back pass maybe, under the rules that changed a few years ago?