Only three people (Norma Cretal, Buzz Corey and Jimmy Calunga) in the USA were qualified to hand-pack the massive parachutes for the Apollo space capsules. Their expertise was so vital, they were not allowed to ride in the same car together for fear of an accident. –WTF Fun Facts
Source:https://www.history.com/news/moon-landing-technology-inventions-computers-heat-shield-rovers