Well now I'm really at a loss. There's only one other possibility that I can think of, and I think it's stretching.
I was taught early on, by the one mentor I found when I was still relatively new to the hobby, to never spray any kind of aerosol or liquid cleaner (like Windex) around my tanks so the spray couldn't contaminate the water as it dropped and settled. He also never used any kind of scented candles or incense, or anything like that, in the same room as his tanks. The thought was that gas exchange between the water and air at the surface could result in toxic chemicals in the water due to the scents in the air. I have always followed suit, but right after we got married 23 years ago my wife started burning scented candles in the family room where my tanks were. I didn't realize it for a while because I worked shiftwork and wasn't around. When I found out I was upset, but as I thought about it over the next couple of days I also realized all my fish were unaffected. I still don't allow anything of the sort in my fishroom today, but I can't say it would cause any issues either.
Which brings us to that stretch possibility, the incense in the air. I'm really having trouble accepting that as a reason, but at the same time I suppose there is the possibility. I am really at a loss.
I've been lucky. None of my dogs have gotten into a skunk. They did almost get into a badger, twice actually. Both times I managed to get them stopped right before the carnage started. They're good-sized dogs, but I'm not talking about carnage to the badger... ?
WYite