It is wrong to mutilate someone's body.
After a major explosion in a warehouse, James volunteered to pick through the rubble and found the dead body of his childhood bully.
James wants to feel some catharsis about the childhood bullying.
James calls the fire fighters over to retrieve the corpse and tells them that the deceased used to bully him.
James films himself repeatedly teabagging the corpse of his childhood bully.
The firefighters point out that James clearly got the better long-term ending, which makes James feel somewhat better.
James' roommate happens to see the video and uploads it to YouTube, prompting internet backlash and a police investigation.