The episode ends on a classic HIMYM note of ambiguity. Future Ted admits that even he doesn't know what really happened. Marshall eventually tells so many conflicting versions—including one where he fought off a —that the true events of that night remain a mystery.
To stop Lily from buying a gun, he claims a monkey cornered him and stole his wallet.
In this episode of (Season 5, Episode 19), the story revolves around Marshall getting mugged in Central Park. However, the "truth" of the event becomes increasingly blurry as Marshall tells different versions of the story to suit his audience. The Core Conflict [S5E19] Zoo or False
The "Zoo or False" theme highlights Marshall’s desire to protect Lily’s sense of safety while balancing his own pride.
As the episode progresses, the story spirals out of control: The episode ends on a classic HIMYM note of ambiguity
Marshall realizes that if he sticks to the monkey story, the zoo might have to euthanize the animal. If he tells the truth, Lily will be terrified of the city. The Resolution
Marshall tells the guys he was held up at gunpoint by a man. To stop Lily from buying a gun, he
Barney, sensing a great story, tries to get Marshall on a local news segment.