Wizard did it. Alternatively, it was Guy Incognito. See, there’s no problem! 
I withdraw my question.
It was Selma, but yeah, that did raise a funny issue. You’d think that would put P&S at about age 50, and Marge is only supposed to be a few years younger than the twins, but she’s 34. Oh well. For that matter, if Homer is 39, as he was at last word, it doesn’t even make sense for him to have been in high school at the same time Marge was. What cainxinth said is actually true. 
You take Marge’s word for it when she gives her age? 
Don’t forget that she dyes her hair…
Ahhh, well in that case, he’s confused because of Smithers using these new-fangled words…
Originally he was 36, then he was 38, and now I guess he’s 39 (although I didn’t see the one where he said that).
What, you don’t think he got held back for a few years?
(Yes, yes, repeat to yourself it’s just a show and you should really just relax, but still.)
I’m not sure exactly in what sense Scratchy’s tongue gets tied, but if some other piece of rope or cord gets tied to the tongue, then a sheet bend probably is the right knot to use. A taut-line hitch would only be used if, first, the tongue were tied to a pole, peg, or other rigid object, and second, there were a need to adjust the tension in the tongue. If the tongue is not being tied to anything in particular, but just has a knot in it, then the best choices would be a good old overhand, or if a larger knot were required, a figure-eight, and neither a sheet bend nor a taut-line would make sense.
Itchy makes Scratchy into an improvised pup-tent by propping a stick under him, nailing pegs through his paws, and then tying his tail and tongue to the pegs. Naturally, he uses a simple overhand, not a sheet-bend. (If the tent-pegs were flexible enough for a sheet-bend, it would be hard to drive them into the ground.)
It really would have been more practical if he used a taut-line hitch, because Scratchy kept getting struck by lightning, which would create variations in muscle tension, making it necessary to keep redoing the knot.
Clearly, Bart didn’t earn his knot-tying merit badge. Under-achiever.
Oh, crap, I just dripped processed cheese on my “Genius at Work” t-shirt.
OK, if he’s Scratchy as an improvised tent, then yes, he should have used a taut-line. Tent guy lines (even the non-tongue type) are the most common use for taut-line hitches, at least off of a ship. But it probably wouldn’t be possible to use a sheet-bend in that circumstance.
And incidentally, there is no knot-tying merit badge. Various knots are requirements for some of the ranks, separately from the merit badges, and a wide assortment of merit badges use knots to some degree (First Aid, Wilderness Survival, and Frontiermanship come to mind).
Next you’re going to tell me there’s no “Badge Forgery” badge.
Jokes, like the frog in biology class, can be dissected to see how they work but they both tend to die in the process. But what the hell? Let’s slit this thing open and see the guts.
As Roger Rabbit said when asked if he could have gotten his hand out of a cuff at any time, “only when it was funny.” What is an inconsistency in our world is perfectly consistent with the rules of the cartoon world. Lisa can make a PC statement that is a fallacy as long as it’s expected of her character and is funny in the scene. What do you expect from someone who wears prescription shoes?
Lisa’s willingness to believe urban legends about animals is perfectly in keeping with her character - the one thing that can distract her from rational thought is a passionate devotion to a ‘worthy’ cause. She’d never stop to thing about whether rice could cause harm, because it was so important to stop people causing that harm in the first place.
Burns wasn’t born rich. He was given up by his parents to a wealthy family - not that he wasn’t happy to leave - in an almost direct parallel to Citizen Kane.
I’m somewhat again out-of-character jokes. For example, throughout the series Ralph has developed into a character that has been fairly consistent. However, in Lisa’s Pony he says something completely out of character. (speaking about Lisa) Chuck: She certainly tamed that horse. Ralph: Yes, but what man can tame her?
Any devoted Simpson fan knows that although both Milhouse and Ralph have shown a history of having a crush on Lisa, it would be more in Milhouse’s nature to say something so salacious. On one hand such inconsistencies are funny because they are inconsistent and completely out of nowhere and on the other hand they are just so anoying.
I don’t know how salacious Milhouse can be, he’s pretty innocent and clueless. Though he IS attracted to Lisa. The joke was that Ralph says random things all the time, so they played with your expectations by having him say something composed and relevant. Which is not to say it isn’t way out of character, because it was.
“I’m trying to fight down the gnawing suspicion that you’re the kind of guy who goes around ruining jokes by piping up, ‘And then what happened?’ right after the punchline.” - Cecil
Y’know, they’re jokes, right? Try this experiment: tell a joke without juxtaposing the expected and the unexpected. And good luck with that.
That said, I’d advise anyone here who’s having trouble processing these jokes to check out the commentary tracks from the Simpsons DVDs, particularly Season 5. They speak often about “elastic reality.” Characters and action can fly out of the Simpsons “universe” for a joke–or even a storyline–but it always snaps back to a center. They actually give it quite a bit of thought, especially Groening, who seems to dislike surrealism. So, these forays away from Simpsons “reality” are in fact part of that reality, as defined by the people who make the show.
Actually, in one episode, he went to the post office and asked if he could mail a letter to the “Prussian Consolate in Siam” on the 4:30 autogyro.
From what I know, there were no autogryos around the time Prussia was a nation.
So he was confused on at least one point.
Google a little, would ya? Springfield has a history of making bad public works projects.
Autogyros were around for a while before that, considering the following quote:
Why post all this? Because I want a Marvel Comics No-Prize , that’s why. 
Prussia ceased to be a nation in 1871 and became a state of Germany. It would make no sense to talk about a “Prussian Consulate” after that point, kinda like there is no Texan embassy in France. Wikipedia says that the first working autogyro was invented in 1923 (http://en.wikipedia.org/wiki/Autogyro)