[Barney explains the origins of Desperation Day]
Barney: Loneliness...the looming specter of Valentine's Day fast approaching...the two key ingredients to my favorite day of the year - February 13th, Desperation Day.
Robin: That's not a thing.
Barney: It's a thing. Much like Valentine's Day itself, Desperation Day dates back thousands of years. [Visualizes Roman-era wedding] Weddings were forbidden under ancient Roman law, so St. Valentine performed them in secret, under threat of death.
Ted: That's actually true.
Barney: Wait. There's more.
Ted: This won't be.
Barney: And right by St. Valentine's side was his best bro, St. Desperatius, there to pick off insecure bridesmaids.
[Cut to fantasy scene with Barney as St. Desperatius and Ted as St. Valentine. Desperatius sees woman who looks like Robin.]
Barney: Loneliness...the looming specter of Valentine's Day fast approaching...the two key ingredients to my favorite day of the year - February 13th, Desperation Day.
Robin: That's not a thing.
Barney: It's a thing. Much like Valentine's Day itself, Desperation Day dates back thousands of years. [Visualizes Roman-era wedding] Weddings were forbidden under ancient Roman law, so St. Valentine performed them in secret, under threat of death.
Ted: That's actually true.
Barney: Wait. There's more.
Ted: This won't be.
Barney: And right by St. Valentine's side was his best bro, St. Desperatius, there to pick off insecure bridesmaids.
[Cut to fantasy scene with Barney as St. Desperatius and Ted as St. Valentine. Desperatius sees woman who looks like Robin.]
[Barney explains the origins of Desperation Day]
Barney : Loneliness...the looming specter of Valentine's Day fast approaching...the two key ingredients to my favorite day of the year - February 13th, Desperation Day.
Robin : That's not a thing.
Barney : It's a thing. Much like Valentine's Day itself, Desperation Day dates back thousands of years. [Visualizes Roman-era wedding] Weddings were forbidden under ancient Roman law, so St. Valentine performed them in secret, under threat of death.
Ted : That's actually true.
Barney : Wait. There's more.
Ted : This won't be.
Barney : And right by St. Valentine's side was his best bro, St. Desperatius, there to pick off insecure bridesmaids.
[Cut to fantasy scene with Barney as St. Desperatius and Ted as St. Valentine. Desperatius sees woman who looks like Robin.]
http://www.tv-quotes.com/shows/how-i-met-your-mother/quote_5174.html