That pic doesn't prove anything. Maybe he and his wife are diabetic,and they both require different insulin.maybe he uses two different kinds of insulin himself,which would explain the different types of vials there. Maybe they are antibiotics for his cows,or his horse, goat,or dog...all of which are available at a farm store and must be kept in the refrigerator. There are more vials in my 65 year old mother's fridge...and I assure you she doesn't use gear.