But Guardian cartoonist Martin Rowson, one of the patrons of the museum, is not convinced the results of the Laughter Lab will affect the way he goes about his work. Speaking to Radio 4’s Today ...

The cartoons often mock the very class that's reading them." And as for younger readers who might miss Chast's joke, Mankoff says, "If they don't get it, I say, 'Give it time.' "Stereotypes for laughs ...