John Davidson has spoken out following his "mortifying" moment at the BAFTAs over the weekend. Source: Aurore Marechal/BAFTA / JB Lacroix The Tourette syndrome campaigner, who is the subject of the biopic, I Swear, was seated in the audience during the awards ceremony on Sunday, Feb. 22. Davidson's condition causes him to produce involuntary vocal tics, which is what happened when he shouted the N-word as actors Michael B. Jordan and Delroy Lindo took the stage to hand out the prize for best visual effects.