Analyze the humor and character dynamics in the provided Dagwood comic strip.

Here are the answers to the questions based on the cartoon:

4.1. Mr Dithers exclaimed that he had just seen him.

4.2.1. In frame 2, Mr. Dithers' body language, with his raised arms, open mouth, and leaning posture, suggests he is angry, frustrated, or exasperated.

4.2.2. 'Pesky dumb distractions' refers to Mr. Dithers and the work-related demands he makes on Dagwood.

4.3. The humour in this cartoon stems from the irony of Dagwood using an "out of office" auto-reply while he is actually in the office. He uses it as a deliberate tactic to avoid work and his boss, Mr. Dithers, whom he considers a "pesky dumb distraction." Mr. Dithers' outrage at this blatant misuse, contrasted with Dagwood's nonchalant attitude in frame 3, creates the comedic effect.

4.4. The question for 4.4 is incomplete in the provided image.