How TPJCians settle their differences and antagonize each other

We all have come a long way by now. Nowadays if you're bui song with someone, you don't just go to the person and say "Fuck you." TPJCians especially have developed many ways to deal with the everyday asshole, and here are a few:

If you don't like someone, you can take things subtly by playing a prank on him.
Use a little vandalism to leave the next computer user a message.
The old-fashioned middle finger is always a good way to tell someone you hate their guts.
Then you can go and break his legs.
Or tell them disgusting stories of yellow shit and colon cancer to gross them out when they're eating.
The best one I've seen: superglue their hands to the monkey bars.
Take compromising and funny photos of the guy you hate and post it on the net or a blog.
Decapitated heads work wonders when you have nothing else to put in your fruit bowl.
Crack "eggy" comments about someone and start an online quarrel on a blog much to the amusement of everyone else.
One of the more unheard-of and drastic measures: poisoning.