Hey I want that!

Why is it that when you can have something, you don't really want it, but then when you want something you can't have it. I was in the gas station today and I was going to get some chocolate, like I do practically everyday, but then I thought, "no I don't really need any". I had a chocolate frosted brownie earlier. So, I left the gas station clicking my heels and chocolateless. I got into the car and I'm not kidding you, ten minutes went by and I wanted chocolate. Of course I had none in the car because I eat it the second I buy it and it would have melted...being summer and all. I know how kids feel when they want something and their parents are like "you should have had it when you had the chance." But they didn't want it then, they want it now! It so weird how that stuff happens. Isn't it?