You know those people who post cliché quotes on facebook thinking they're intelligent? Or bombard you with pictures of their beliefs? I've started taking to posting bad taste comments in response until they unfriend me. One woman posted a picture of a dead polar bear with a hunter leering over him with a knife saying "Clearly has no heart." I responded along the lines of "I'm pretty sure he does, doesn't look like he's removed it yet."
I can be a dick and I don't care. Spam me and eventually I'll fight back.