Lil' Wigglewart

Lately, when I put Calista down on her playmat on the floor, like this:

Nice and centered in the middle, yes? Anyway, when I put her down to play, I watch her kick her feet out over and over again, until she is more like this:

Because, who needs to be in the middle of the playmat when they can be on the edge, or possibly completely off of it?
Silly little wigglewart.