Witnesses to the alleged incident told The Sun that a professor, who is not teaching this semester, had been trying to flirt with the student all night. Other students worked to block his advances, they said. At one point, the professor grabbed the student from behind and dragged her across the dance floor toward the exit, as she struggled to escape his grasp and flee, according to the students. Johns Hopkins graduate student Marios Falaris was a witness and described it as “one of the most disturbing things I’ve ever seen.”