Was so fond of the role of The Master that, according to Doctor Who script editor Eric Saward, Ainley would introduce himself on the phone by saying "This is the Master," and then do his trademark villainous laugh.
I once sat next to a girl in a play and had to say 'Would you like some tea?', and I said it and she broke rehearsal and said 'My God you're evil!'. I guess it's something I have.