Think of Mammootty and the mind instantly recalls the imposing policeman, the patriarch whose words are heavy with meaning, or the leader whose silence alone can dominate a frame. His reputation rests on seriousness. Yet, woven through his four decades of cinema, there's another thread - one where Mammootty turns the unexpected into laughter. And when he does, the effect is electric.In the early 1980s, humour wasn't his natural ground.