"The ads that annoy people most tend to be repeated too often and contain insidious jingles," said Jennifer Hiscock, of Marketing, the magazine behind the survey. "Other irritating features are a patronising tone of voice, implausible plots and the over-use of D-list celebrities." The "worst" advertisement of 2003 was for the directory enquiries service 11 88 88. With its mix of animation and a nerve-jangling jingle, the £13million promotion irritated 60 per cent of those surveyed .