Did you have a spiritually rejuvenating weekend during which your loving family members and random kindly strangers helped to restore some of your dwindling faith in humanity? This video of a Chicago teenager punching an elderly homeless man should eliminate that new-found faith.

Posted on sex/rap/violence/WTF videosite WorldStarHipHop over the weekend, the video was shot in a Chicago L station in April 2011. It shows the teen approaching the man, knocking him out, then joining his friends on the train to laugh and laugh about the poor old man, who's left lying on the ground with only one bystander to help him.

Have a nice day.

[My Fox Chicago]