You got me thinking "Dairy" and "Chocolate Milk". When I was in 4th or 5th grade, we had a field trip to Chase Brother's Dairy in SoCal. It was really a fun and interesting tour and in the end they wheeled out a few cases of chocolate milk and said "help yourselves kids!" - I had 3 or 4 of those little cartons. Hot day and delicious, fresh chocolate milk REALLY hit the spot.