Forgot the Milk Again

So I had this one rule for myself, kind of like a personal challenge to prove I could actually stick to something. It's not even kinky or anything; it's just about getting milk every single time I hit up the grocery store. But, you know how these things go, I got distracted by some fancy cheese and completely forgot. Now, as someone who studies complex systems, it’s funny how one little variable can throw everything off course. And here I am feeling like a failure because of some damn milk.