<p>Mo Grunts just shoved his way off a crowded CTA platform and wants to know who raised these clueless commuters. </p>

Mo Grunts just shoved his way off a crowded CTA platform and wants to know who raised these clueless commuters.

<p>Mo Grunts just shoved his way off a crowded CTA platform and wants to know who raised these clueless commuters.&nbsp;</p>

035: Public transit etiquette

Mo Grunts is a chimpanzee at large in America and he's got a lot of questions. We try our best to answer.

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