My three-year-old was doing a three-year-old thing at breakfast. He wouldn’t drink his milk because he said it smelled funny. Every time he put his cup to his mouth to take a sip he curled his nose and told us “This milk smells yucky!”
Finally, I did what dads do. I took the cup and gave it a sniff. Turns out, he was right! Sort of. It wasn’t the milk that actually smelled funny but the cup. The inside hadn’t been cleaned properly and it gave off a noticeable odor when you put the cup to your nose. I attribute the problem to my older children who are too much like the adolescent version of their father who thought washing dishes poorly might get him out of having to do it (as an aside I was wrong, and so are they!).
Of course, I wouldn’t have gotten my youngest to drink the milk if I would have taken a paper towel and simply shined the outside of the cup. The outside wasn’t the problem. It was the inside that was causing the issue. I could have put a sticker on the outside of the cup that said “Clean Cup!”, but alas, the inside is what needed changing.