Anyone who has had prolonged professional contact with disability is well acquainted with the phenomenon of those who either isolate themselves or become stubborn.

By traveling in packs, the students on the outside of the pack insulate those in the middle from undergoing any collisions.

Not only are political prisoners held far from their national and political communities, but they are separated from each other and unable to communicate with each other.

The borrower is cut off from international markets, and essential imports can no longer be purchased, while large scale defaults threaten to plunge creditors into insolvency.