The Raffle - S3-E3
Audio problem: When Kel breaks the TV, the sound is a very clear overdub to make it clear the TV is broken. (00:08:15)
Audio problem: The sound of the aspirin hitting Chris is just a fraction before it hits him. (00:02:35)
Diamonds Are For Roger - S1-E7
Audio problem: When Chris is hit by the old lady the sound is before the actions.
The Lottery - S2-E3
Audio problem: When Kenan is being hit by the swordfish, the sound is out of time with the actions. (00:20:25)
Answer: He's simply enjoying doing it himself. Especially since he likely believes he can do it better than she can.