---- OAS SETUP begin ---- Turn autoplay off Turn autoplay on Please activate cookies in order to turn autoplay off Jump to content [s] Jump to comments [c] Jump to site navigation [0] Jump to search [4] Terms and conditions [8] UK US AU Your activity Email subscriptions Account details Linked services Profile Beta About us Contact us Press office Terms of service Privacy policy Guardian iPhone iPad edition Kindle Guardian Weekly Digital edition News US World Sports Comment Culture Business Money Environment Science Travel Tech Media Life & style Data News Science Psychology Previous Blog home Why do some people find so much pleasure in harassing others online? A new study attempts to shed light on the behaviour of...