A Bad Egg
These are the eggs that cannot be saved -- they will never hatch.
I am afraid I have bad news for you, <name>. This egg is too far gone. I can take it from you so that it may be disposed of properly.
Please don't be discouraged; we cannot save them all. If you find yourself in Feralas again, please try again. Bring another egg for the Super Egg-O-Matic!
The entirety of this quest happens at Tanaris