Evelyn Waugh’s Vile Bodies (1930), opens on a storm-wracked cross-Channel ferry whose upper decks are populated by the improbably named minions (“Faith”, “Charity”, “Fortitude”) of “the woman evangelist”, Mrs Melrose Ape. Few original readers would have been in any doubt of Mrs Ape’s identity, for with her calm assurance to the seasick that “if you have peace in your hearts your stomach will look after itself”, and her Packard car “bearing the dust of three continents’’, she is clearly based on Aimee Semple McPherson, the subject of Naomi Grimley’s absorbing documentary (25 November).Nine decades on from Sr Aimee’s high-water mark, the world is over-accustomed to the harangues of fire-bre