Lab.oratory is a hardcore leather / fetish cruise club in a former warehouse. They regularly host special piss nights. The first Saturday and the forth Sunday of each month are their "Yellow Facts" piss party. There is no dress code - Lass es Laufen. Check out their website for times and other special events.
Finding Lab.oratory can be a bit tricky. From Straße der Pariser Kommune, follow the street between the warehouses till end, then turn left to the Lab.oratory/Ostgut location. (The warehouse also houses the Berghain and Panorama Bar parties, but they have different rooms and a separate entrance.)

