Hmm...does smell a little fishy, probably literally and figuratively.
Good one!
Propane could be the cause I guess or at least that would be what it is blamed on. In my own condo there are loads of fire suppression sprinklers everywhere including inside of my own living room over my computers and other electronics. I'm a little concerned about what would happen to my gear if a fire started like 10 floors away from my unit.