Donald uses a rubber bone as bait, but it comes off the rope after a tug of war.
When Donald uses a cat hand puppet as a dog bait, some soap is splashed on Pluto, making him look like a poodle.
As machine turns on, two robotic arms wearing boxing gloves grab Donald by the collar from the back and two arms scrub his head and mouth.
Then it dumps his head and upper body in the water allowing it to scrub his rear end.
The short was released on May 18, 2004, on Walt Disney Treasures: The Chronological Donald, Volume One: 1934-1941.