Blessing or a Curse?

I'm not sure if Elizabeth finally rolling from her back to her tummy is a blessing or a curse. She can now roll onto her tummy to grab those darned toys behind her head, and has started pushing herself backwards as well as maneuvering in a circle while on her tummy. The cursed part of this whole process is when she decides to flip herself onto her tummy while in her crib. Oh dear heavens you would think she was being pinched the way she get mad when she does this.

It seems to only happen when she's awake in her crib and not horribly tired. Take for instance this morning. She woke up a few times (2am/4am) and we heard her talking to herself, but she put herself back to sleep. Apparently after I had left for work, she had woken up again (which is not uncommon right before we get her out of bed at 6am), but flipped herself onto her tummy. She screamed bloody murder until daddy came to rescue her which then eliminated daddy's shower time.

I just don't get how she gets so frustrated. She knows how to roll from her tummy to her back, and quickly did so every time I put her on her tummy in the bath a few nights ago. Oh well, she will learn eventually, but I can tell you this, she is not a tummy sleeper! :o)