on this information, Marshall, Lily, and Barney believe that the mysterious girl in Ted's bed is actually Robin, but as Ted goes to wake her up, Robin calls and tells him she is coming over to discuss the previous night. The girl in bed, Trudy (Danica McKellar), wakes up and explains her side of the story: she had seen Ted's drunken dancing and they exchanged numbers in the ladies' room of the bar, which Ted had entered and used accidentally. She told Ted the meaning of the word "karaoke" and about her love for penguins, which Ted later mentioned to Carl. It was she whom he later called and invited over, not Robin. Ted tells Trudy to hide when Robin comes over to talk, and Trudy leaves via the fire escape before Ted can show her to Robin to prove that he has moved on. Future Ted explains that Trudy never responded to his subsequent message, and he never did work out where the pineapple came from, but that it was delicious. Production Carter Bays later admitted he learned a lesson from this episode to not write themselves into a corner. The line "we never found out where the pineapple came from" was something they never should have said. The mystery of the pineapple was solved in a deleted scene from the season 9 episode "Daisy". The scene was released online by BuzzFeed. In the clip, The Captain has a pineapple on his porch, and explains to the gang that he practices the tradition of putting one outside as a "symbol of hospitality". This leads Ted to remember stealing an identical pineapple from The Captain's house when he was very drunk. References External links How I Met Your Mother (season 1) episodes 2005 American television episodes