One a troop drop we had 2 LMs, the one up front would heat up a can of soup in the galley, then poor it into a barf bag. He would then stick the bag into the front of his flight suit, turn to the full house load of troops and act like his was puking in the bag. Next he took the bag out of his flight suit, tied it of with the handy twist tie and motion for the first trooper to pass it to the back, it would make the trip to the rear LM who would feel it then open it up and get his spoon out of his sleeve and start eating. When the plane returned some poor sap of a crewchief (like me) had to clean up a very messy cargo compartment. Heck most of 'em were going to ralph anyway!