* During the Roleplay/DCNation Olympics Arc, it was completely unintentional for Hades to actually kill Arsenal. The intent by the plot-runner and Hades-mun was just to get him high, removing him from the fight. The fact the Roy player ran with it and made Hades simulate a heroin ''overdose'' completely changed the ending, prompting the SadisticChoice the Greek Gods would force on Donna later.
* In Part III of ''Fanfic/BartTheGeneral'', a door bell can be heard ringing in the background when Bart talks about throwing a sponge at a mirror.
* ''FanFic/QueenOfAllOni'': Chapter 14 has a scene of most of the Shadow Hand playing poker, and another of Right comforting Jade after her [[CallingTheOldManOut confrontation]] with her father. Neither was originally planned, but were added spur of the moment.
* [[TabletopGames/HoylesRulesOfDragonPoker Hoyle's Rules of Dragon Poker]] allows players to add cards from other games in and play them.
--> 230. If a card from another game is successfully snuck in after the session has begun and one round played, the card is valid and must be used in the manner intended by the original game.