For some reason, the moment the drone took a selfie made me feel uneasy.
Perhaps there was a disconnect between the human-written instructions, the drone's compliance with them, and the resulting image of a floating drone in the mirror instead of a human.
They are not risk-free, also not in inflammation type issues. In this (RCT) trial in patients with acute pancreatitis, probiotics actually lead to death (with no deaths in the control group). [0]
Perhaps there was a disconnect between the human-written instructions, the drone's compliance with them, and the resulting image of a floating drone in the mirror instead of a human.