The Lizard and the Cobra size each other up and then they try to intimidate each other by increasing their sizes.
If being the biggest determines the baddest, then each wants to say I am the biggest and a baddest.
The Cobra then strike, the monitor retreats, but not before slapping the Cobra with its tail.
Now, the Cobra has the eggs all to itself, only that they were all empty. The monitor lizard has the last laugh. The battle was over even before it began.