 Dahmer later said this was his first attempt to attack someone.Despite being regarded as a loner and an oddball among his peers at RHS, Dahmer became something of a class clown who often staged pranks, which became known as "Doing a Dahmer"; these included bleating and simulating epileptic seizures or cerebral palsy, at school and local stores.By 1977 his grades had declined; his parents hired a private tutor, with limited success.