It was hard to believe that Richard Herring was ever funny, watching his Edinburgh show Someone Likes Yoghurt. As though trying to better his erstwhile comedy partner Stewart Lee, who has a genuine gift for overanalysis, Herring embarked on a tedious deconstruction of "One for sorrow, two for joy". For a finale, he turned his literal-minded attention to a comment made by a supermarket assistant when looking over his shopping basket. Hence the show's title. The kind of comedy that makes you want to scream, but not with laughter.