My Goose laid a Tiny egg then a Enormous egg!!! UPDATED:PICS ADDED!!!!

[The Duck ABC's]

What are the chances of a double yolk goose egg hatching? In duck eggs it is almost zero. They may start to develop, but one will die during incubation and poison the healthy one, which dies a little bit later. Has anyone ever heard of a double yolk goose egg hatching? I know it works quite well in chicken eggs.