Whoa, take clear pictures first, then check with the local history society.

Seriously, she got spooked by the SCOBY? That's honestly surprising to me. In my experience, it always looks strange floating in there, but it's just the culture doing its thing. I've given my kombucha to people before and had to say it's not gone bad, it's supposed to look like that. Your mileage may vary, but most folks come around once you explain it's alive and healthy. It's a common mix-up for anyone new to fermented drinks. Good on you for turning it into a chat, though.

That junction box mouse saved my circuit last winter.