DD3 hated being on her tummy so much that she would roll almost all the way over to her tummy, then stop before she got there. I told DH that she knew what she was doing even at 3 and 4 mo-old, that if she rolled all the way over, she'd be on her dreaded tummy and scream like the dickens. So she just decided not to roll all the way over. She did not regularly roll onto her tummy until she was 5.5 mo-old, not because she couldn't but because she didn't want to. Of course this sounded crazy to our family, but DH and I somehow understood what she was thinking. She was a very colicky baby and constantly bored -- a change of scenery to the grocery store could hold her attention for quite some time.

Kriston, your car story about DS sounds like DD9-mo. I don't even know if DD9mo is GT because she's just 9mo, but she has been showing some unusual signs since birth which I've been more keen to notice since she's our 2nd child. Anyway, at around 8mo, she crawled to the TV stand and tried opening the door. I told her a firm, "No." DD cried. She tried it again. "No." Cried some more. Later, she'd go over to the door, put her hand up as if she was going to grab the doorknob, stop her hand halfway to its destination, and then cry without me saying a word. I almost started laughing at the sight of it; I guess I've become immune to bouts of crying and fit-throwing since DD3 could be crowned Best Drama Queen ever.