This was back in 2009 between Mikey Emma and Joseph Baldino at the Melrose (not sure who the other group was though):

A feud between two groups of Melrose Diner patrons early Friday resulted in injuries and two arrests.

Michael Emma and Joseph Baldino, both 24 and from the 1300 block of Geary Street, were charged with two counts each of conspiracy, possession of an instrument of crime, simple assault, recklessly endangering another person and conspiracy to commit aggravated assault.

The victim who suffered a forking received a large scrape to his back, while the another victim sustained contusions and cuts to his head. Neither required hospital treatment and police said they do not know what ignited the brawl.

The victims, a 24- and 25-year-old, were having a meal inside the establishment at 1501 Snyder Ave. when they became involved in a physical altercation with a group of about four other men at another table. According to investigators, Baldino was spotted striking the younger victim in the head with a metal napkin dispenser, while Emma was seen stabbing the second victim in the back with a fork, Detective Danielle Tolliver of South Detectives said.