One my buddy had a funny story with Missigno. He wanted to catch it. We know, if we talk with that Weedle guy and later Surfing at the Right edge of the Cinnabar, we will meet normal pokemon also (in water), like Pidgey, Muk, Growlithe etc. So my friend met.... MEW!!! He caught it, but later he wanted take Mew from Computer Box and what? DITTO! XD
Ditto had a fun with my friend! LOL