Why would someone write letters upside down accidentally?
447465
Look at this:  \n\nM = /&#92;/&#92;\n\nW = &#92;/&#92;/\n\nnow... what does it take to turn an M into a W?\n/&#92;/&#92; ~> /&#92;/ ~> &#92;/&#92;/\n\nThe point is, it's pretty close to being the same letter, so in times of lapsed concentration, it's easy for your hand to forget which letter it's writing.  What's funny is when people type out completely different words than the ones they were thinking.  It's Freudian.  Like if you're used to typing out "what the hell?" every single day but today you decide you're going to type "what the hole", and your fingers bypass the hole and go straight to hell.
202748
The fact that we use the same letter combinations for all sorts of vowel sounds. Essentially the letters 'ough' can be read as 'uff' 'off' 'ow' and 'oh'. To someone who was trying to learn this would be next to impossible to understand.
172557
See if you can unscramble these words. You can read words with all the letters mixed up except for the first and last. Got an email like this not long ago.
386204
as long as the first and last letters are in their appropriate places, we can usually decipher the intended words fairly easily. just a function of the language processing power of our brains.\n\nedited to add: which is why it's much harder to read the answer just above mine than it is to read the original question.
813974
Shifting each key one to the left on a keyboard gives:\n"I got the first two workds. Nit it for kinda weird.".
768661
He could apply a base to the letters.  Acids and bases are opposite and neutralize one another.  If he added the correct base, the acid would be neutralized and would not erode the letters.
899365
It's usually because CAPS LOCK is on.\n-MM
909210
The real question should be why you consider right to left written languages "crazy"?\nIs it because you were not trained to read from right to left?\nSome of the most beautiful languages, and most ancient ones, read and write right to left.\n\nCan you perhaps rephrase your question so that others may more seriously discuss it with you?
160641
they are called palindromes. examples:\n\nmom, HAH, etc
32567
Are to talking about the little line that's raised a little (if so there should be one on the 'J' key too)?  If you are, it's so you can feel whether or not your fingers are in the right place.  It reduces the need to look at the keyboad while typing (and I image would be extremely useful for blind people).  Incidently, on old Apple keyboards, there is a circular bump on 'D' and 'K' rather than a horizontal line bump on 'F' and 'J,' but at some point a few years back they changed it to match Microsoft keyboards so it would be easier to swtich back and forth between the two (if you can find an old Apple keyboard, try typing on it - it feels weirder than you might expect).
883874
If someone is a poor typer, switch the M and N keys on the keyboard and watch them flip out!  (Assuming, of course, that you work in an office environment.)
279505
I am right handed so I remember it as OD d=dominant.  OS s=sucky (handwriting)  and OU, the U has two points at the top of the letter. Just a dumb little trick that got me through nursing school.  If you're left handed, eh, well, sorry!
727555
Oh.  My.  Yes, I do.  I'm not really sure why either but I think I was taught to do that when I was a very young girl just learning to write....my fater was in the Navy & I joined too, and we did it there too, so maybe that has something to do with it.....I'm not sure.
172532
i actually sort of saw the letter i thought of between a and w\n\nbut no this is really stupid
1026499
Move the first letter to the back, and it spells it backward.\nExample:\n\nbanana..\nbecomes Ananab\nWhich is banana backwards.
786574
Typos are one thing..deliberately looking stupid is something entirely different.\n"iz dat cleer enuff 4 u?"
1167179
They certainly are! Even my daughter's school teachers once used the wrong kanji on a news letter...! (My Japanese husband pointed it out, and he still hasn't forgotten or forgiven it!!)\n\nWith Japanese typing it's easy to select the wrong kanji (glyph as you call it,) because you type in the pronunciation, then press the space bar until the correct option comes up! I'll give you an example, just in case your computer can display Japanese fonts!\ntou\nとう\n塔\n等\n問う\n棟\n党\n... I could go on, but I won't!! But it's easy to select the wrong character, either through ignorance, or by mistake!\n; )\n\nIn addition to that, anyone can type the wrong letter, or accidentally miss out a letter - or even a whole word! Japanese and Chinese are no different! If someone pressed one wrong letter on their keyboard when typing 'hello' / 'good afternoon', it could easily turn from\nこんにちは (konnichiwa)\nto\nこんのちは (konnochiwa)\nor\nじょんにちは (jonnichiwa)\nmaking it total nonsense!\n\nIf you type the wrong letters and then try to use the space bar to get the kanji you want it's a total nightmare!! But at least you spot the mistake - usually!\n; )\n\nYou would expect to find spelling errors all over the place, along with grammatical errors ... especially on the Yahoo! Japan Chiebukuro site (Answers!)