On a deleted scene for What We Left Behind, producers Ronald D. O'Brien, Bashir, and Worf (Michael Dorn) join in the earlier episode's goofy barroom brawl, and a hilarious exchange between the heroes addresses the striking differences between the Klingons of DS9 and those of TOS. Ben Sisko and Miles O'Brien (Colm Meaney) actually talk to Captain Kirk (William Shatner). Using technology similar to that which put Tom Hanks in scenes with deceased presidents and pop stars in Forrest Gump two years earlier, 'Trials and Tribble-ations' deposited DS9's heroes into 1967's 'Trouble with Tribbles' episode of TOS. However, later on What We Left Behind, Farrell and others make references to tensions between her and the producers, including one unnamed producer who - according to Farrell - told her she should agree to whatever the studio offered her because if she wasn't at DS9 she'd be 'working at K-Mart. In a 2011 interview with Farrell at, she talked largely about being tired of the demanding work schedule. Jadzia is murdered in the season 6 finale. Different versions of what happened have been told over the years, but the crux appears to be that contract negotiations broke down between Farrell and the studio.

Unfortunately, it also allowed for Farrell's early departure from DS9. Reunited with a previous, male host's wife in season 4's 'Rejoined,' Dax and Lenara (Susanna Thompson) rekindle their old romance in spite of the Trill taboo against reconnecting with previous hosts' loved ones. Among other things, it opened the doors for one of the earliest same-sex kisses on television. The concept leads to some interesting stories on DS9.

Deep space nine cast meets kirk