There was also the glorious subversion in Planetes. After the Wham Episode "Love," and the equally powerful episode 25, Hachimaki and Ai have returned to Section 7 for one last tour, the latter having recovered from her severe injuries. As they stand on the hull of the Toy Box, they begin a word game, naming objects that start with a specific letter. This is how Hachimaki proposes to Tanabe.
Hachimaki: Haha, you lost the game.