In the Ponce de Leon story (story told by Scrooge to Grandma Duck) there's the pond full of youthful water to swim. Scrooge's reason for not swimming 'I'm a slow swimmer, by the time I reached the other side, I'd be an egg?' I haven't got comic here to reference, so, is that right, he says egg??? Somebody know? Seems like there's other egg-mentions too.