I did a flight into Edward River (Pormpuraaw) with (roads closed) wet season foodstuffs in, and live 12" baby crocs out. Passing 8000ft on departure Edward River, a loud popping sound was heard. Had a quick think about 'buoyancy bladders' and whether crocs had them, and considered a rapid descent before 800 baby crocs exploded. Turned out to be an errant packet of potato chips that had escaped and was still on board under the second control seat.