Time to ocd up this post to remove the strain on your eyes caused by the infamous wall of text. Milking should work this way: 1. You can only milk domesticated female cows + Cows can only be milked after they give birth, and milking stops when the calf becomes an adult. (when in doubt, use google) 2. Mama cow can't be milked infinitely, give her some rest: cows should only be able to be milked once a day.