So, would any intentionally crafted cached self count for his? Is a cached self formed for the purpose of education fundamentally different from one formed for anything else? I don't really see what you're going for here.

In any case, I always found it pretty obvious that I did something similar to this. (I always liked to imagine it's because I sometimes pretend to be a supporting character in some kind of story so I can enjoy breaking the fourth wall)

The most common "character" I play would probably be best described as a mildly unbalanced sociopath who lives in his own head and has a warped, but relentless sense of humor. Think "Black Hat Guy" from XKCD only severely less competent, and in high school. I'm pretty sure it came from trying the "too cool for school" route, failing at it, and covering for said failure by acting crazy. I don't really think of non-peers that I don't feel comfortable overtly manipulating as people so much as scenery, like rocks, so any role I try out will mostly be for the sake of dealing with other students, as opposed to teachers.

So, I'm not really sure what the point of this post is other than bringing up a specific type of cached self, but it is fun to talk about personal quirks, so I'm gonna upvote this anyway for giving me the chance to. It should probably go in "Discussion", though.