The Roxbury man alleged to have spat on an MBTA bus driver did not show up at his arraignment Thursday.

The spit-upon bus driver, however, was arraigned for allegedly clocking the alleged spitter in the head with a wooden block in retaliation.

The driver, Terri Felix, 40, of Borckton, faces charges of assault and battery with a dangerous weapon after she allegedly assaulted 52-year-old Homer Henderson Jr. with a chock block, which is essentially a wooden block with a looped handle that is used a tire stop, on Dec. 20.

Felix was released on her own recognizance.

Henderson was supposed to be arraigned on a charge of assault and battery with a dangerous weapon for the same incident where he spat on Feliz. Henderson, however, did not show up and a warrant was issued for his arrest.

The dispute on the Rte 1 bus was caught on surveillance camera and a passenger’s cell phone camera. Near Mass Ave and Washington Street, Henderson is alleged to have spat on Felix before leaving the bus. Felix, according to prosecutors, is alleged to have retrieved a wooden chock block from a storage compartment and follow Henderson and continue to argue with him.

Cell phone footage shows her striking him in the head with the block after following him down Washington St., according to prosecutors.

She then returned to the bus and called police. Henderson has said he suffered a cut to his mouth and a broken bone in his cheek as a result of the assault.

Felix is slated to return to court May 21.