[Scott]

The way I interpret this scenario is as follows: Disc lands in a large pile of debris that was left over from a work party. Due to the size of the pile, it would be unsafe for the player to climb up and throw. The player digs out his disc and moves backwards to immediately behind the pile - the first place where he can get solid and safe footing. The player does not get to automatically go back 5 meters simply because that would give him a better look.