Referring to its first demo? Really, the engineers were asking for that… "glitch":
1) Failed to test Ed209 on demo conditions (medium sized meeting room).
2) Failed to anticipate the failure of the sound recognition algorithm (gun on on carpet instead of gun on concrete).
3) Failed to implement software failsafes for the demo: a layer on the motor system so it never touches anything (especially moving things such as humans), a weapons system that doesn't actually fire…
4) Failed to implement a proper shut down button, such as a physical plug one could pull from behind.
