There seems to be some truth in the fact that bullies make others feel miserable, just to make themselves feel better. US researchers studying the brain scans of teenagers with a history of aggressive bullying behaviours, indicate that inflicting pain or seeing someone in pain, actually gives them great pleasure. This may not surprise anyone who has been a victim of bullying, however, Dr. Benjamin Lahey from the University of Chicago and co-author of the study says researchers were dumbfounded by these findings, as they were not what they expected.