I'm working on a paper in a coffee shop right now. The owner had to throw out the guy next to me because he was really obviously tweaking (jittery, buggy eyes, scratching himself constantly, left his foils on the table, black residue on the restroom sink that he went to ever 15 minutes).
The guy was running Zul'Farrak on a goblin warrior. Looked like he was tanking, actually.