Drama erupted aboard a Bulgaria bound plane when passenger, deprived of chocolate by a flight attendant, launched into a vulgarity filled tirade.In the video, uploaded to the web on Saturday night, the woman with the temperamental sweet-tooth was joined by her sister and husband in her verbal assault on the Israir Airlines employee who refused to sell her the chocolate bar. Other passengers eventually intervened when the incident appeared to be escalating into a physical confrontation. The video has already become a viral sensation among Facebook pages and forums frequented by flight attendants, getting tens of thousands of views.Israir released this official statement in response to the incident: "The phenomenon of passenger violence toward airplane staff is increasing. It is even recognized by the International Civil Aviation Organization. Our role is to do everything within our power to eliminate the phenomenon, first and foremost for security reasons...Israir is doing and will continue to do everything possible to ensure a high level of security and confidence."