The Raffle - S3-E3
Revealing mistake: Kel does not drop anything in the tombola. (00:13:20)
The Raffle - S3-E3
Revealing mistake: The woman who wins the TV supposedly hits Kenan with it, but very obviously misses. (00:17:05)
The Raffle - S3-E3
Revealing mistake: When Kel is trying to stop the woman taking the TV, he grabs her leg. If you look closely, he hasn't got hold of it at all. (00:17:10)
Revealing mistake: The graduation stage appears to be set in front of a woodland area. However, when Kel climbs out of the bulldozer after having demolished the stage, you can see that it's actually a backdrop as the rail holding it up is visible.
Answer: He's simply enjoying doing it himself. Especially since he likely believes he can do it better than she can.