House Wiring
From SnOwy - Ed's Wiki Notebook
This house has all sorts of oddities in it.
One such oddity is the outlet in the kitchen on the wall segment that separates the kitchen from the living room. This outlet is wired up to both circuits 1 and 5; and also is near enough to circuits 20 and 21 to experience a small induced current. This outlet stops providing power when both (1, 5) are fused; and diagnoses as unpowered when all (1, 5, 20, 21) are fused.