So when someone is trying to break your egg, there is a chance that they will barricade themselves with sandstone into the egg. What you wanna do is at the start of the game, get a chest full of stone pickaxes. Hide the chest behind a tree or someplace secret. So if someone tries to barricade themselves into the egg you can take out a stone pickaxe and break the barricades. You should hide it because they might steal the pickaxes. Hope this helped :L