I dont see why people would think its strange idea. i see a lot of sarcasm but i think it is a smart intellectually thinking idea. Alot of company's are offering amino acid treatments for plants and if you know much about chemistry you would know that milk is protein. Protein is made up of chains of amino acids. So, in my opinion the logic is there. Its just a matter of what else is in the milk. I know calcium and vitamin D and k also iodine, Biotin and Pantothenic Acid (B vitamins), Potassium and Magnesium,Selenium (mineral), Thiamin(B-vitamin), and Conjugated Linoleic Acid(fatty acid), lactic acid. Sometimes growth hormone and antibiotics. Basically whatever the farmer injected or the cow ate will be in the milk just like a women. Milk is also acidic, slightly. Sometimes neutral. But i thought of it. Everyone wants to save money and DIY. Iam sure when blackstrap was first suggested it endured ridicule not to say that milk is good which i think it is not. But it is a good idea for people to be creative and suggest and tryout different things otherwise humans will make no progress especially when it might be in ur fridge.