Unprofessional owner

Disgusting behavior by owner What an terrible experience. The owner and his friend were having a bachelor party and the singer Mark Haze was performing. During his break the bachelor came onto the stage and start singing while his friend started paling with the artist guitar to his dismayed. The owner came to me and said I must stand for the bachelor performing and I told them they are unprofessional. An half an hour later the owner friend came to me and said the owner got a message for me. When I looked he gave me the middle finger. This is so unprofessional and we went to complain with the general manager but obviously he cant do anything as the owner sectioned this behavior. I will report this to the head franchise.