Using people?

[havoc]

This may have been covered in another blog post, apologies if so, but you know when you daydream about a person from real life when you like them/find them interesting, and create conversations with them in your head and pretend you're talking to them etc, do any of you ever switch it so that you actually pretend to BE them? i have a long running fictional universe with characters that i have kept for years (whom i pretend to be too), but during certain periods of time, if i happen to meet someone interesting in the real world, i will proceed to use them as my character for a while. Slightly worried that in doing this, it completely warps my view of the person and unconsciously effects my friendship/relationship with them, as i think the way I act with them in reality could very different if I didn't secretly daydream about being them.