Attack of the Carpet Critter

I was recently trying to describe the way that my son gets around and the best way I could come up with describing his lurch-crawl pattern is that he reminds me of some sort of creature from a horror movie as he drags himself along the carpet with one arm, occasionally making a shrill bleat of excitement and joy as he moves towards his intended target. It's not unlike the way that the Terminator dragged himself forward near the end of the first Terminator movie, a single arm clawing forward and dragging the severed upper torso forward slowly but surely -- Alexander is just cuter when he does his thing . . .