The only major incident during the orbital phase involved a contraband
corned beef sandwich that Young had smuggled on board, hiding it in a pocket of his spacesuit (though Director of Flight Crew Operations
Deke Slayton wrote in his autobiography that he gave Young permission to do so). Grissom found this to be highly amusing, saying later, "After the flight our superiors at NASA let us know in no uncertain terms that non-man-rated corned beef sandwiches were out for future space missions. But John's deadpan offer of this strictly non-regulation goodie remains one of the highlights of our flight for me."
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