A McDonald’s employee was kicked in the stomach by an “irate and violent” customer who was “extremely unhappy with his service in the drive-thru,” according to Florida cops.

Investigators allege that William Silva, 49, exploded after being "tied up" in the drive-thru lane, which was “backed up” Sunday around 10:30 PM.

Silva, cops say, entered the Clearwater McDonald’s (seen below) and started screaming and cursing at employees. After being asked to calm down, Silva allegedly attacked worker Manuel Cano, who was off-duty at the time.

Silva, a criminal complaint alleges, "delivered a front kick" to Cano, who countered with several blows to Silva’s head.

While Silva, pictured at right, denied starting the January 1 altercation or creating a disturbance inside the restaurant, his account of the incident was contradicted by Cano and a McDonald’s manager.

Silva was arrested for disorderly conduct and battery, both misdemeanors. He was released from the county jail last night after posting $650 bond. Silva’s rap sheet includes convictions for cocaine possession and possession of drug paraphernalia.