Watch How I Met Your Mother Season 2 Episode 9 online via TV Fanatic with over 6 options to watch the How I Met Your Mother S2E9 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, and Amazon Prime.
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When Robin refuses to go to the mall and the gang is betting on reasons why not, Marshall and Barnery propose a "slap bet."