Early Terrible Twos?

So my daughter is entering the Terrible Twos a tad early. She is just nearly 17 months old, but is already as headstrong as they come (wonder where she gets that from?!?!). She thinks everything should go her way and when it doesn't, she gets very very upset.

Last night, we bought her a booster seat, the kind that strap to the chair and then you strap her in it. While her daddy needed to attach the straps to the seat and the seat to the chair, little missy decided she wanted in it NOW! And proceeded to throw the biggest tantrum I have seen yet. Oy Vey! I can't wait for this stage to pass!