Continuity mistake: In the episode when it's Kenan's birthday, Kenan and Kel are looking for Kenan's present in Kenan's parents room. As they're searching, Kel throws some of Kenan's parent's clothes all over the place. But then when Kel throws the snowglobe, there is practically no mess, but just a few clothes on the floor - less than before. Some clothes on the bed disappear as well.
Continuity mistake: In the episode where Kel is banned from ever going in the Rockmore house again, Kel sneaks through Kenan's window, scaring Kenan. Kenan jumps back in fright and knocks the lamp from his bedside table and it rolls onto his bed. However in the very next shot the lamp is suddenly back and upright on the bedside table. In the next shot the lamp is now back on the bed.
The Lottery - S2-E3
Continuity mistake: At the very beginning, when Kenan is shown in Rigby's, the clock changes from 8:00 to 9:25. (00:03:00 - 00:03:30)
Continuity mistake: During the filming of "Supermarket Cop 3," the time on the clock changes throughout. (00:18:00)
Continuity mistake: The amount of foot dust changes from when Chris come back to when Kenan grabs some.
Get The Kel Outta Here - S2-E8
Continuity mistake: Kel pushes Rodger on the table out the front door straight. However there is a wall there as seen at the start. But Rodger manages to go into the road. (00:06:35)
Continuity mistake: When Kenan and Kel are in Kenan's room there are 2 socks hanging out of the dresser the one on the left keeps changing positions.
The Cold War - S1-E8
Continuity mistake: Kel drinks a fair bit of Kenan's "medicine" but in the next shot the amount of "medicine" is greater than before.
Get The Kel Outta Here - S2-E8
Continuity mistake: Kel comes rollerblading in from the right of the door but there is normally a wall there. (00:02:50)
Continuity mistake: Kel comes into Rigby's and sits on the counter and takes of one of his trainers, after he has been handing out fliers. He puts it on the counter so the sole of it faces the camera all the time, yet during shots it suddenly changes so that the top of the trainer faces the camera.
Continuity mistake: In the episode when there is a rat in the store, there is a scene where Kenan and Kel are discussing the rat. There is a lady in the background holding a green shopping basket. Then in a following shot the same lady is now suddenly holding a red basket. Cut to the shot where she runs out of the store screaming, and suddenly her basket is green again.
Continuity mistake: Just before and when the president it in Rigby's The clock keeps changing time.
Merry Christmas, Kenan - S1-E11
Continuity mistake: When Kel knocks the Christmas tree over the star lands by Roger's feet but appears on Roger's head as he stands up.
Continuity mistake: When Keenan is yelling at the kids playing with the water guns, there is a clip board on the counter that disappears.
Doing Things The Hemingway - S1-E3
Continuity mistake: Kel is attempting a life goal and attempts to put 50 grapes in his mouth. When he spits them out there is about 10, nowhere near what Kel then claims is 33 grapes.
Continuity mistake: In the episode when the president comes into Rigby's, near the start Kenan supposedly fixed the slush-o machine, yet it isn't fixed properly and slush-o sprays out and completely covers Chris. As the scene continues, the wet patches on Chris's apron completely change. At one point there are only a few patches dotted on the apron, then suddenly the apron is completely soaked again.
Continuity mistake: When Kenan and Kel are in the kitchen trying to make the birthday cake, there is a blackboard behind them. The writing on the board disappears and then appears again during the scene.
Continuity mistake: Get the Kel Outa Here: At the start of a 5 minute scene, the clock in Rigby's says 4:30 approx. At the end of the scene, the clock says 4:40. (00:13:00)
The Raffle - S3-E3
Continuity mistake: Chris comes into the shop and does not lock the door but has to unlock it for the customers to come in. (00:11:00)
Answer: He's simply enjoying doing it himself. Especially since he likely believes he can do it better than she can.