Precisely. It is all very strange. Two percent of what?
[he contemplates closing the carton and putting it in a new bag to take home... for about a second, before just tilting it back and gulping down more. It tastes so good, and this "self-restraint" stuff he's been fighting with this whole trip is getting really really hard.]
it probably is silly and does not matter. Milk is milk, and does not come in more than one flavor.