Along the same lines, this sensor used for parachute deployment was designed, installed, and tested (?) upside-down. <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Genesis_%28spacecraft%29#Recovery_phase" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Genesis_%28spacecraft%29#Recov...</a>