The Three Days Rule

How I Met Your Mother: Season 4: Episode 21

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How I Met Your Mother
The Three Days Rule

Episode Details & Credits

CBS | Air Date: April 27, 2009
Summary: When Ted violates the 'three days rule' by continually texting with a girl he's just met, Barney and Marshall retaliate by impersonating her.
Creator: Craig Thomas and Carter Bays
Genre(s): Comedy, Drama
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Season 4 Episodes

Seasons & Episodes