Someone at college had something similar, but it was just labeled as a joke "fart spray". They apparently spritzed it in their room (adjoining mine, other side of the bathroom) to bother their roomie. There was a pause, then a shout and both bailed out of the room, gagging. I sealed the bathroom door so it wouldn't come in, and they had to go back in holding their breath and open the windows, and sleep elsewhere that night till it aired out. I don't know what it was, but even a whiff from down the hall was like the sewers of hell were burning and had vented out that door.