Mahāvācakāla
Mahāvācakāla:A man who lived on the banks of the Mahāvālukagangā.For thirty years he meditated on the thirty two impurities of the body in the hope of becoming a sotāpanna.But at the end of that period he gave up his meditations,renouncing the Buddha’s Doctrine as futile.
After death he was born as a crocodile in the river,and one day sixty carts laden with stone pillars started crossing the river at Kacchakatittha.The crocodile ate bulls,carts,and pillars.AA.i.367.