Orpheus turned to look back upon Eurydice to be sure Hades had kept his word (when Hades had told him not to do so).
I think Hades was fair, as he allowed Orpheus to bring Eurydice back to the land of the living. Personally, I don't think Hades does that for every person he meets. It was Orpheus's fault for turning back.
Yes, there are stories with Hades in them, such as with Orpheus and Hercules and Dionysus.
Orpheus
Orpheus played his music for Hades and convinced him to release his wife Eurydice. Only on the condition that Orpheus did not look back even once as he left the underworld to insure his wife was following him. Orpheus did not follow Hades' instructions and looked back, he saw Eurydice there, but lost her again because he broke their agreement.
Orpheus
Persephone had a bit of a soft spot for lovers and all that, so she kind of persuaded Hades to let Eurydice go. She was young and Persephone had been young when Hades kidnapped her. Hades had to have a stipulation though, and Orpheus broke it, so it was all for nothing really.
Hades promised to let Eurydice return, if on the trip Orpheus would not turn round before reaching his own home.
Orpheus did.
Eurydice his wife.
Most of it takes place in the Underworld of Hades.
Orpheus.