Interestingly funny story, but also carries a great lesson. Don't pretend to be someone's friend and use them whilst thinking there are no consequences.

Story: http://www.fimfiction.net/story/324019/everypony-hates-dash

Music: https://www.youtube.com/watch?v=RPoBE-E8VOc

Art: https://cdn-img.fimfiction.net/story/o0b1-1460069116-324019-full