By Kevin Boie | MYFOXDFW.COM DALLAS - An 18-year-old was harassed and then beaten with brass knuckles on Tuesday by an assailant who didn’t like the victim's baggy pants, Dallas police said. The incident happened at about 4 p.m. in a Kroger parking lot at 3939 Frankford Road. According to a police report, the teen was inside the grocery store when an identified man repeatedly made disparaging comments about the teen's baggy pants. The assailant then followed the teen outside, where the pair had words and a fight broke out, the report stated. The attacker armed himself with brass knuckles and beat the victim until witnesses separated the pair, police said. One witness told officers the assailant also punched him during the incident. Another witness said the teen appeared to have been knocked unconscious or left severely dazed during the fight. According to the document, the teen suffered bruising to the left temple area and several raised bumps on the side and back of his head. He was transported to Baylor Plano in good condition. The attacker suffered a broken left ankle and was later transported to Medical Center of Plano. Reporting officers said they found the brass knuckles on him before he was transported. One witness said the assailant had been drinking prior to the attack. He is charged with aggravated assault with a deadly weapon.