I'm feeling a bit melancholy

It's sad to be sad. Why, you ask, am I sad? I'll tell you why.
Tonight at dinner, I had the most fantastic meal. I soon became full, and could not finish my portion of food. I was left to just sit there and stare at this beautiful creation of delectable delights. I became overwhelmingly despondent. And then I had to get up, carry my plate to the trash can, and say "au revoir" as the food plummeted to its untimely death.

And you must be wondering by now, "So where's the question?" Thanks for the reminder! This is, after all, a blog about "funny, thought-provoking, and sometimes, just plain pointless" questions. So, here it goes:

What makes you all sorts of depressed? What kinds of silly little things (like uneaten food) make you sad? You heard my story, now let me hear yours! Post your comment for all to see! I want good answers people! Let's get depressed!