Even stationary, the vines could cause tripping and other sorts of trouble. But now they weren't acting so stationary, as one vine casually creeped its way up the boy's leg, wrapping loosely so he might not notice at first. Meanwhile, another vine was twining itself around both of the girl's legs, gently holding them together. Ever had your shoelaces tied together? This kind of wrapping made such a prank look mild.