Steal the Double-Distilled Skooma for Stands-In-Shallows

Walkthrough
This quest begins when the Dragonborn strikes up a conversation with Stands-In-Shallows. The Argonian mentions that some pirates were recently caught smuggling extra powerful Skooma, and intimates that he would like some for himself.

Steal the Double-Distilled Skooma for Stands-In-Shallows
If the Dragonborn agrees, the skooma can be found at the New Gnisis Cornerclub under the second staircase.

Bring the Double-Distilled Skooma to Stands-In-Shallows
Once the skooma has been secured, simply return to the docks (or the Argonian Assemblage and give it Stands-In-Shallows who increases the Dragonborn's Sneak skill by one point as a reward.

Stehle das doppelt destillierte Skooma für Steht-Im-Flachen