It cracked.
Because one egg is
They crack jokes.
Donald Ducks
Scientist A: Are you sure? scientist B: Trust me, I know what i'm doing.
Dam-it!
Because the Disc was cracked
A corn has ears.
A dead cow! (My 5-year old made up this joke)
Because sheep can hear a zipper from a mile away.
Because pterodactyls are extinct.