A man who aggressively expressed his displeasure with his drink is being sought on suspicion of aggravated assault today, as the bartender he attacked recovers from her injuries.

Police say that the assault went down at 7:18 p.m. Friday, at a bar on the 3400 block of Mission Street, which is between 30th and Cortland Streets.

According to the San Francisco Police Department, a man who looked to be in his mid-20s was unhappy with the drink served to him by the 31-year-old female bartender.

As opposed to using his words, the man threw a beer bottle at the bartender, striking her in the head. The blow was hard enough that police say it caused "a laceration requiring medical care." She was transported to an area hospital for injuries police say are not life-threatening.

The bottle tosser fled on foot, police say. As of Monday morning, he remains at large, and police say no arrests have been made in the case.