I always tried and usually managed to keep a variety to the behaviour of my chars.
Especially those I care about more got so many details and went into so many directions which I never planned or saw incoming for them.
Most of my chars are different from me in many ways, a couple of them makes me even sad to play or cause other less nice feelings.
The variety and barely endless possibility of how ones char can behave, act and change and life for their faction or how they get out of said faction etc.
I guess I had only two real cases where I accidently made one of my chars know more then it should, but they are barely always (except when my mood is like extremely bad or good) not influenced by myself.
