Chaining Blissey for the same reason as above o_0. They appear in Sparkly Patches correct? I've got Yanma with Compound eyes so that might help the above poster.
@Mifune: I feel your pain. The 2nd radar shiny I ever encountered (It was a shinx) I accidently pressed 'run' in my haste to open the bag, it totally sucks. Though one good thing is that it has made me paranoid to accidently running from shinies for my whole chaining career (I always press right in the bottom left corner of the bag option) and I have never accidently run again.
Yes, I got the same paranoia when I first ran from a chain of 30 togepi. When I did, I just stared at it for five minutes wondering why I would do such a thing.