A failsafe for a covert drone? Sure, just layer it like a bad onion: start with a hard‑coded kill switch that only the operator can trigger remotely, then a self‑destruct sequence that only fires if GPS fails, add an auto‑return protocol that kicks in on signal loss, then a stealth‑mode that turns off all external emitters, and finally a last‑ditch self‑deactivation that just powers down the entire system if battery falls below a threshold. Each layer is a fallback for the previous, so you never have to choose between safety and silence.