Who's breastmilk is in my freezer?

I work from home and I eat lunch around two in the afternoon. Today at around 1:45 p.m. I opened the freezer door with my left hand and the refrigerator door with my right to take in the full view of available snackage. I had in mind to get some hot-pockets but was distracted by what looked like a white rectangular astronaut drink pouch straight from N.A.S.A.

"What the heck is this?" I said out loud to myself. No one was home to hear me. I tipped it over to find a date handwritten in permanent marker on the side. My hand immediately shot back as if it had run into spiderwebs under a couch. It was some one's frozen breast milk container.

I stepped back from the refrigerator and swung the doors shut. I wondered how milk could startle me. We drink four gallons a week at my house, how could a little frozen bag make me jump?

My mind went into overdrive. My youngest is six, so it definitely wasn't from my wife. I tried to figure out how many suckling children had been in my house lately and which one of them left their lunch in my freezer. Overcome with hunger, I gave up on the question and went back to eating.

I decided against the hot pockets. To get to them I would have had to face the astronaut drink pouch in the freezer again. I decided on a peanut butter and jelly sandwich. The raw materials for that meal were on the other side of the kitchen.

I did, however, eat lunch with a tall ice cold glass of cow's milk. I thought I could use the calcium.