The episode takes place during the reception of . While the newlyweds spend the night unsuccessfully trying to find time to eat, Barney discovers that Ted and Robin have been keeping a major secret for several weeks.

: While at a restaurant, a waiter brings a glass of champagne with an engagement ring in it to their table. Robin immediately panics and shouts "No!", only to realize the ring was intended for a couple at the next table.

is the title of the season two finale (Season 2, Episode 22) of the sitcom How I Met Your Mother . It first aired on May 14, 2007, on CBS. Episode Synopsis