Forget lasers. There are people that can shoot a mortar out of the sky with
bullets. ...And you have no idea why that is so much more difficult than lasers, do you, kid?
I read it more as a "look how stupid this company is" piece, rather than a "look how smart I am" boast. If he were really smart, he would have kept his flappy mouth shut at $9/hour, then offered to consult for the company about their quality assurance efficiency at ten times the hourly rate after quitting.
A business so clueless as to cheap out on quality control probably values advice by how much they had to pay for it.
And if he were really smart and evil, he would have used his skill to sell all bugs found beyond his quota to the other "testers". If all it takes to not be fired is to find one new bug every two hours, you find maybe six for yourself in the morning, and sell the rest at $10 each just before the management metrics get compiled.