Remember that science lesson in elementary/middle school where we learn about the difference between physical and chemical changes? It's really hard to teach that lesson to a quirky two-year-old.
When my kids finish their lunch or dinner, they are allowed to have a cookie. Most days, it's just an Oreo, but sometimes, they score it big and get a chocolate chip cookie (if my husband or I had the motivation to bake some).
My eldest son is typically very excited about getting a chocolate chip cookie. In fact, he'll sit there for about two whole minutes with a giant, surprised expression on his face, much like this:
Then, after much verbal motivation from me, he finally starts to eat the cookie. He very quickly discovers that the cookie is soft (how I like 'em), and the cookie falls apart. This usually involves him yelling, "OH, NO!" followed by something that looks like this:
Yep, those are some rage tears.
I try to explain to him over and over that the cookie is still a cookie and still very much delicious, but he refuses to believe it. Usually, it takes his sister asking, "Mommy, if he isn't going to eat his cookie, can I eat it?" before he wises up and eats the cookie pieces. Goofball.