In 2007, Jonathon Reed created a poem called "Lost Generation" for the AARP @50 Video Contest. The poem, when first read, is very negative and violent. It talks about how one will behave in the next thirty years: celebrating divorces, work before family, and increasing the risk of global warming. But read to the end -- it will inspire.
Below is the poem, followed by another one, written in a similar fashion. I feel that this is a very unique way of poetry. It can be negative but still be positive when reversed.