Apocalyptic Drinks
You worked at the Apocalypse Bar for a brief time about five years ago. Dagger hired you shortly after she took over as the new owner. You might have been a bouncer, bartender, cook, or even entertainer. You were only there a short time, about 6 months or so, but in that time, you got to know many of the regular customers. While most of the staff has changed since you left, many of those regulars are still there and they still recognize you whenever you're there.
You also got to know Dagger quite well during your time there. You may decide the exact parameters of your relationship with her, though it was not primarily an adversarial one. Similarly, you may also decide your reasons for leaving. Perhaps you only ever planned to remain a short time. If you were already part of the Coop, you might have only been staying in Ardan for one circuit until the Coop returned to Ardan again. If you weren't already a member of the Coop, perhaps it was the Coop's arrival in town that convinced you to join them. Perhaps you got into trouble with someone or some group in Ardan and had to flee town. You might even have had a falling out with Dagger; however, if this is the case, it was something reasonably minor that she has since forgiven you for (or you have forgiven her).
Whatever your reason for leaving, you are still welcomed whenever you pass through, and people there are generally willing to open up to you and tell you things they might not so easily tell others, making the Apocalypse Bar an even greater source of news and gossip.