No matter what the circumstances, we always have enough to share. Sharing has never left anyone in shortage, but rather added more joy, contentment and meaning to our lives. While sharing is innately human, there are some things were just created to be shared:
Sharing notes and spending hours at the photocopy shop is how we all pulled through our college and school years. It taught us the 'importance' of sharing.
Music, movies, games, sitcoms, other kind of videos... Sorry I don't share my downloads; said nobody ever.