Bob McKimson simply couldn’t make a cartoon after taking over as a director without characters running toward the camera.
Here’s an example from Crowing Pains, one of his first. Sylvester and the dog are running in the foreground as you might expect in any cartoon. Then they run into the background.
Then McKimson had them run diagonally toward and past the camera. He seems to have done this in every one of his first few cartoons.
Whether it was McKimson or his writer Warren Foster, I don’t know, but the characterisations in the early McKimson shorts were just plain weird. His Bugs Bunny was unable to tell the difference between a mechanical rabbit and a real one, and got upset over a two-cent bounty (would the Bugs you know really care?). In this cartoon, Sylvester is aggressive and sadistic. He even hangs the dog. Of course, we get more of those coming-at-the-camera shots that McKimson doted on. Random frames.
There’s lots of thrashing about in this cartoon that’s fun to stop and look at. Within a few years, the animation in the McKimson unit got pretty sedate. Budget cuts, a whole new animation crew and American society’s transition from the Let’s-Kick-Nazi-Butt-‘40s to Let’s-Have-a-Barbecue-and-Invite-the-Neighbours-‘50s likely played varying degrees of responsibility.