Took the picture with my phone that I was using to control the drone. Tello sat there stable as a rock as I dropped out of the Tello app, took the pic, and jumped back in to control.
I didn't even know there was a Tello pilot training program. I really need to keep up with the news. I tried hanging a cat toy with fish line from my Tello, to see if I could get my lazy cat to chase it (the cat takes after me; it takes a lot to get him off the couch). The cat instantly went from what appeared to be complete deep sleep to a leap to grab the Tello itself, hovering about 5 feet off the ground. The cat sniffed it suspiciously, and then returned to his nap. My marketing plan for selling Tellos as cat minders seems to need a little work.