A game related one;
Many of you know that the Missingno. in Pokemon RB, which gives you 126 of any numeric item you want, is battled by first talking to Viridian city's grumpy coffee guy and watching him catch a weedle. Then you would go to Cinnabar Island a surf up the East Coast in pure Pauly D fashion. But why does this work?
Now the astute gamer may notice that [PLAYER CHARACTER] bears little resemblance to Grumpy Coffee Man, which means the Game Developers had to invent a new back sprite just for that one dude. However, whilst that guy was showing you how to enslave little beasties, the game needed somewhere to store the information for [PLAYER CHARACTER]'s back sprite, which just happened to go in pokédex no. 000, which means that since it's in the pokédex, the cart counts it as a pokémon.
Now, to the coast of Cinnabar. The green buffery thing that you can surf on is technically still part of cinnibar island. If you go onto the sea, you will notice the tiniest pause as the game loads up Route 20 and all the Tentacool you can shake a stick at. The problem with the green buffery thing is that you surf on it. According to the Cart, anywhere you can surf, you can run into wild pokémon. however, since we are still in a town, the cart has no pokémans loaded. Oh Noes!
What follows is a brain fart on the cartridge's behalf, where it scrambles for pokémon data. Instead of just plopping a tentacool in there (LIKE EVERY OTHER GODDAMN PIECE OF WATER) It goes for the most recently used data, residing in no. 000. But it's not pokémon data, It's player data. and the cart, acting very much the disgruntled minimum wage employee, shrugs and throws it at you anyway. The result is missingno.
I lost track of what I was typing, so I'll just sum up here:
TL

R MISSINGNO. IS YOU! To achieve the reward, you must first overcome
yourself! Who knew Game Freak was full of psychology drop outs?
Also! The Qwerty keyboard an standard on the majority of western computers is the way it is because, in Ye' Olde days when typewriters were invented, letters that commonly went together (like S and H) wouldn't get stuck together and make every letter sound like it was being dictated by Sean Connery. Since then, nobodies bothered to change it, even though there is no need for it now.