Middle child?

I am a middle child. And most of what accompanies it.

Today, I was out and the person I was talking to said, "Yeah, he's a typical middle child. Has it all and wants more..." Whoa there. I will admit to most middle-child symptoms. But this? Hmm... I don't know what to think of it. Or I just don't want to admit to that. Or I'm scared that it's true. There I stood, in the middle of the fabric store, contemplating buying what I did not need, but simply wanted. Shoot. You got me.