The problems that can arise when business partners fall out were illustrated by the recent judgment in Costa v DissociaDID Ltd & Anor. In this case, His Honour Judge Hacon was tasked with clearing up various copyright disputes over literary works created for a YouTube channel, DissociaDID. (DID stands for dissociative identity disorder, formerly known as multiple personality disorder.) The case was brought by Sergi Mendes Costa, who had collaborated with the defendant, Chloe