The master bum scooter

This kid gets around- and, she, gets around on her bum and, she, does it fast. So fast, that when you look away for a second or 2, she has already made it half-way across the room. I tried to catch her in action today. I suspect she'll fore go crawling, but who needs crawling when you can get the job done on your bum, right?
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OK, here she comes.

But, wait, let's try to climb these stairs first.