Jerry's Diary is a 1949 one-reel animated cartoon that is the 45th Tom and Jerry short released by Metro-Goldwyn-Mayer,[1] directed by William Hanna and Joseph Barbera, produced by Fred Quimby, scored by Scott Bradley, and animated by Kenneth Muse and Ed Barge.
Tom sets up traps in front of Jerry's home, but is interrupted by a radio announcement declaring it "Be Kind To Animals" week.
Instead, he finds Jerry's diary and reads about their past encounters: Each successive entry fans Tom's anger, making him destroy his presents and finally rip up the diary.
When the unsuspecting Jerry returns home, Tom tries to grab him, but the radio reminds him to be kind.
As a sarcastic response to that message, Tom smashes his last remaining gift - a pie - into Jerry's face, leaving him baffled.