Raptor claws, fast moving, fast attacking units of death
They're like a plague, never stopping, always destroying
Your defense fails right in front of your eyes, nothing stands in their way
Marines, Firebats, Siege Tanks, everything, dead
Next thing you know, it's your last building

Perhaps you survive the first wave
Maybe your enemy is a noob, doesn't know how to mass zerglings right
Consider yourself lucky
Give him 2 minutes, he's massing zerglings as your trying to make defense
And here's wave two, at your doorsteps, what should you do?