“Mom – you can hug me when I’m asleep!”Thus far a lot has been said of rules one and two. This is because they are the things which tend to set Bart apart from the crowd, the things which are quintessentially him. But for every ying there must be a yang, and you’ve got to maintain this balance or you’ll end up with a caricature instead of a character. That’s right – the until-now-barely-mentioned rule three.
It’s also the most nebulous rule. After all, how can we set down rules for how a ten year old boy behaves?
My advice here, I’m afraid, is to go do some research. If I were able to give you definitive rules on how to write characters of this age, I would be publishing them instead of posting them on the net

. Go read books involving characters of about Bart/Lisa’s age [D]. Aim for ones which people like not because of plot, but because of characterisation – that is, after all, what you’re interested in. And go re-watch some of the earlier episode too, to try and remind you of how Bart behaved in the early days. I particularly advise early seasons here, as one complaint I’ve heard from several different sources about some of the more recent episodes is that Bart and Lisa behave too much like mini adults.
If you really want me to give some concrete advice here, naivety is one area I will wholeheartedly advise you to keep in mind. Ten is an interesting age – you probably
know a lot about the world, but
understand rather less of it. Thus you draw your own conclusions to explain what’s going on. Remember Milhouse talking about how when you sneeze it’s your soul trying to escape, and you have to cram it back in? Okay, it’s not a line by Bart, but it’s a wonderful example. Even more recently, when Bart converted his tree house a la the Playboy mansion, we heard the line “Then we can have orgies – whatever they are”. He’s unaware of the word’s meaning, but has picked up that it’s a “desirable” thing (for want of a better word

) and has carried on in his train of thought from this point. Another of my favourite quotations is: “The birds are singing, the bees are trying to have sex with them… as is my understanding”. Doing this kind of thing well is arguably a tricky task, giving you guidance on when you should try and do it even harder, but if you can get it right you’re bound to come up with some great lines/moments.[E]
Golden Rule 4Have fun.
Bart should be an enjoyable character to write. He gets to do all the stuff you wish you could have done at his age – he’s popular, never stuck for a witty comeback, and gets to defeat sideshow bob on a regular basis. If most of the time you’re writing about him you’re having fun, chances are you’re doing something right. Keep it light, leave the big thoughts to Lisa, and the worrying about who’s going to tidy up later to Marge.
Good luck.
[A]This can be accounted for with Bart’s desire for attention. When someone’s shouting at him he’s the centre of attention, and this is something he likes (not to suggest, however, that he likes being shouted at. Just the pros go further towards outweighing the cons for him than most people, and he can therefore take it in his stride). When someone’s upset because of him, however, they’re focused on something else other than him – hence he’s got less to distract him from picking up on how they’re feeling.
[ B] Notice I said fundamental level. If he’s been told to go tidy his room, do some gardening, or help Marge with the shopping, and can’t be bothered, he’ll let everyone around know how he feels about that.
[C]Bart’s breaking up Milhouse and Samantha is an interesting case – there it was the very fact he valued Milhouse’s friendship above Milhouse’s happiness that precipitated the event. This is a pretty selfish way to behave with your best friend. Similarly, note that it was Lisa rather than Milhouse who was willing to give Bart his soul back for free, indicating that the way Milhouse cares for Bart is maybe not as selfless as the way Lisa does. Which is an interesting dynamic, given that on a day to day basis Bart tends to choose Milhouse’s company over Lisa’s. It also highlights how Bart and Milhouse may have more in common, but Bart and Lisa probably
care about one another more.
[D] Be wary of any book where someone of this age is the main character or hero, especially ones aimed at a younger audience. Chances are these books will contain scenes few ‘real life’ ten year olds will have ever faced, and as such said character(s) will be shaped differently to most kids as the story progresses (or at least, they should be if the author is doing their job properly). Save these for when writing something involving Sideshow Bob.
[E] While we’re on the subject, a pet peeve of mine; on too many occasions I’ve read fics where Bart uses language which would make a sailor blush. Generally as soon as I find this I resign myself to the fact that the rest of the story is probably not going to be worth my time. Generally I’m right.
The worst words Bart knows on the show are hell, damn, and maybe fart. You need a
cast iron reason to break this rule. Anyone who finds this to be a contentious / surprising statement needs to go back and really re-examine who they think Bart is.