Last night I found Thing 2 happily wandering around the living room. The cats looked at me like, "What IS that thing? And why can't we eat it?"
I scooped him up and put him back in his jar. I still couldn't tell if Thing 1 was alive or not. Playing possum or dead? I should have a better verdict tomorrow.
This morning Thing 2 was definitely still alive and kicking. Crawling. I refreshed their leaves and put them in the shade.
Hopefully I have more good news to report tomorrow.