is the 17th episode of the first season of How I Met Your Mother , originally aired on March 20, 2006. It's a key episode for character development, particularly for Marshall Eriksen , and marks the beginning of several long-running jokes. Plot Overview
"How I Met Your Mother" Life Among the Gorillas (TV ... - IMDb
: Marshall starts an internship at AltruCell (Barney’s company), which he initially hates because of his crude and obnoxious coworkers. To survive, he takes Barney's advice to "become the mask," adopting their "laddish" behavior to fit in.
