[Lee, Sander, Daniel]
I got two copies of a key for a fire cabinet in B102B that holds chemicals. All 3 keys turn the lock. However, Sander and I couldn't figure out how to use the key to actually lock the cabinet. It seems like you would want to remove the key after turning it 90°, but this wasn't (easily) possible.
[Alex, Daniel]
Alex figured out that the handle needs to be exactly horizontal or vertical to allow for the key to be twisted 180°. We added expired acetone, ethyl alcohol, and isopropanol into the chemical cabinet. The wiki that tracks the location of chemicals has been updated accordingly.