It makes your companions one dimentional. What should happen if they are bothered by a choice is ask,
Q) "why did you do/say that"
A, 1) "I was lying to gain trust"
A, 2) "I have feelings and stuff and my feelings don't care about your facts"
A, 3) "It's a small angry guy called non-ya-business"
A, 4) "I robbed his wallet"
Because you always instantly know the motive behind someones actions right? Not so much.
