Even Kim Possible (A Sitch in time) didn't get away with adult jokes.
Now that you mention it, Even Kim Possible, did have at least 2 jokes i know of.
First from A Sitch in Time (or if you are watching the 3 seperate Episodes it's in the Future Episode:
(Ron Tries to grab the Tempus Simia Idol, Shego Leaps down Hands Blazing with Energy)
Shego: No Touchy my Monkey!
Ron: Can't help a guy for Trying...
Shego: Actually I can, I have the Muscle to back it up. I can do Anything!
Kim: Hey! That's My Line!
and then of course from Rufus versus Commodore Puddles:
(Kim Listens at door of Theater)
Kim: I hear Laughter? Is that a good thing?
(Just then Two Special agents (Smith #1 and Smith #2) walk in,
Ron: Agent Smith...
Kim : And Agent Smith....What are you doing here?
Agent Smith#1 : We couldn't let the folks see the actual 'Area 51' footage (As Agent Smith#2 Breaks Tape.)
Agent Smith#2: So that's why we exchanged it for one of your home Movies..
Ron: (Shocked) Home Movies? W-which one?
(Just then a cut to a Young 3 or 4 year old Ron sitting on the toilet...)
Young Ron: I made a potty! (Laughter is heard)
Kim (Looking at Ron) Ron's Big Day?
Ron (Glumly) Ron's Big Day.
Cryptozoology 101: The truth is real.
Friday nights on CN.. Action, Adventure, and.. Chilli Fries?
Kim Possible 2002-2007. Save the Cheerleader, Save the World. and for one brief Moment, we the fans, did save the world.