Went to the other apartment to clean up a bit. Discovered a plastic tub filled with leaky wine bottles. Rescued what I could, including a bottle of Quinta do Noval 1970 vintage, and a bottle of Camus Napoléon cognac — half of which had been lost to evaporation. Saving the port for another night (I'm optimistic, given how hardy this stuff is). The Camus tastes like it's at best 30% ABV now but the flavours and aromas are still stunning…perfect with some cheese to end a grimy night of wiping mould and goopy vinegar off fragile labels.