The Cable guy takes Steven to a medieval themed restaurant where they then fight each other with swords and other medieval weapons. Steven merely tries to defend himself while the Cable guy appears to want to inflict harm upon Steven (such as when he slices open Steven's shirt, barely missing his body).
The Cable guy (upset that Robin is on a date with somebody other than Steven) ambushes the date in the restroom. He dunks his head in the toilet, twists his arm behind his back and throws him to the floor. There he pulls out his eyebrows, throws him into the wall, punches him in the back, knees him in the stomach and finally stuffs the guy's mouth on the hand dryer nozzle and turns it on.
Steven punches the Cable guy in the face after he implies that he's seen quite a bit of Robin.
The Cable guy repeatedly tries to break down Steven's door and when he finally does he chases Steven around his apartment.