Originally, this was going to be a quick, single shot of Newton popping his head out of the side of the toppled over cube.
Then he was joined by his brother. If Newton is on one side of something and Pierre is on the other, that typically will end in some sort of sibling squabble.
And lo and behold, there they go!
Newton’s paw is clearly visible in this shot, so please don’t think that Pierre is the sole instigator.
The boys have always liked to rough house.