I've had a nightmare before where my A. seemanni kept falling to the floor and literally breaking to pieces, and the dream kept "rewinding" to replay the nightmare over and over. It was awful.
The nightmare also almost came true when I was rehousing my C. versicolor because it jumped to the floor twice while trying to transfer, but thankfully being an arboreal it didn't suffer any injuries. Point of the matter is, I don't handle my Ts because the risk is just too great on their end. Worst I could get is a wasp-level "sting" (which in of itself might cause me to drop them out of shock/recoil), for them it'd be almost certain death.