I just got through reading the book "Woodbine Red Leader" about George Loving, a WWII P-51 pilot. His air group was being temporarily moved to a staging base 20 miles away for the invasion of southern France, Operation Dragoon. He got the bright idea of putting a few cans of beer in the ammo boxes in the wings of his P-51 so they would get cold from his fight through altitude. Only problem was they only got up to 5000' so the beer was still warm. He didn't care because he and with wing mates, him and 3 other pilots, were the only ones out of the whole group that had beer that day. Of course everyone else was jealous.