The smart phone addict, how many hours do they waste every day, desperately checking if someone's liked their comment, retweeted their inane drival, or replied to their post.
Think what other more productive things they could be doing in that time, like looking where they are going, paying attention to the road when driving, and not looking like a right shit when their mates are trying to talk to them in pubs etc, the list of better things they could do is endless.