Jared Weston Walter, 26, is accused of masturbating and ejaculating on heads of TriMet bus passengers in Portland, Oregon, The Oregonian reported.
Walter allegedly gave a female passenger the special protein treatment at about 7 a.m. Tuesday, and authorities believe he did the same thing to at least two other women over the past three weeks.
"At the time of those first two reports, the victims were unsure as to what had transpired, and the seriousness of the offense was not understood," wrote Sgt. Pete Simpson in a statement obtained by The Oregonian.
Walter has become known as the "TriMet barber" because in 2010, he was convicted of cutting off the hair of random bus passengers and spreading super glue on their heads. He was sentenced to 13 months in prison and two years of parole, according to KATU, and was just recently paroled.
Now he's facing charges of sex abuse, harassment, disorderly conduct, public indecency and interfering with public transportation. According to KGW, he pleaded not guilty and will return to court in June.
In 2010, Walter's mother told KATU that her son had been difficult to handle growing up, but she was unaware of him having an obsession with women's hair.