DURING a rally at Lahores Regal Chowk on the eve of the 1990 elections, workers of the Pakistan Muslim League ( PML ) pressed their leader, Nawaz Sharif, to climb up on the seat of a huge, 40- foot- high bicycle, the Islami Jamhoori Ittehads election symbol. Nawaz demurred initially, but finally succumbed to his supporters demand. When he was finally perched there, he struck the casual observer as someone afraid of heights, a man much more relaxed with his feet on the ground.