YAY!!!
I am so very glad you got him out, and that I helped in some small way.
You probably have the higher grade sheetrock, which is fairly tough, around here everyone uses the bottom of the line stuff and trust me, you can punch a hole in it pretty easily.
But the important thing is, baby is safe and sound and none the worse for wear! And I think we've all learned a very important lesson here, don't turn your back on one of these little buggers for a second. Just like a toddler, you wouldn't believe how much trouble they can get into in a few seconds.
Gale