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Season 2 · Episode 8
0.025mDecember 13, 2003
Marshall gets into the cell phone business, but when his business partner, Tyler, wants to use Marshall's special smiley code to cheat on a test, Marshall actually complies. Marshall feels guilty afterwards and Tyler warns him not to tell, but Marshall's new invention turns against him: he can no longer talk understandably. To make matters worse, Professor Z and Principal Durst know Marshall cheated on the test with Tyler...