Towards the end of the cartoon, whilst Tom and Butch are battling over Toodles' affections, Tom grabs a swing and places a plant-pot on it. However, he pulls the swing quite far, yet it is still as close to the ground as when it was just dangling initially. With how far he pulled it there is no way that it would still be that close to the ground.
When Tom pushes the chair with Butch on it into the pool at one point Butch's arms disappear.