How could Hal fire his own boss in "Company Picnic"?

How could Hal fire his own boss in "Company Picnic"? - Ethnic businessman shaking hand of applicant in office

In the Malcolm in the Middle episode "Company Picnic", Hal was nervous to meet his new boss at the company picnic, but when they met everything went well. Surprisingly, the new boss called him a different name and then after a while, Hal told him he is fired... I'm lost at this point. What happened? How could Hal fire his own boss?

plot-explanation malcolm-in-the-middle

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How could Hal fire his own boss in "Company Picnic"? - Two Women Sitting on Ground Near Bonfire

How could Hal fire his own boss in "Company Picnic"? - Thoughtful ethnic businessman using laptop while working in office

Jim Halpert vs. Charles Miner - The Office

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