Suffice it to say, the How I Met Your Mother series finale left many fans
riotously angry displeased.
But producers have included a deleted scene (from How I Met Your Mother Season 9 Episode 20) in the Complete Series DVD Set that might at least help some viewers find a sense of closure.
In short: we now know the answer to the mystery of the pineapple!!!
As a quick refresher: Ted invited Danica McKeller’s Trudy back to his place on a How I Met Your Mother Season 1 episode. When the two awoke, there was a pineapple on Ted’s nightstand.
The question of why hung over the sitcom for the rest of its run.
In the deleted scene, however, we see Ted at The Captain’s house after Lily sought refuge there following her departure from the Farhampton Inn. (This is the episode in which we learn she's pregnant again.)
Once everyone chills out, The Captain stops Ted and says,:"You stole one thing from me, one thing I can forgive. Steal more than one thing, well, that's another matter."
Cut to Ted's flashback to 2005 and witness him taking the pineapple from The Captain's townhouse. BAM! There it is.