Surely it's better to use the things we don't like in ourselves rather than trying to shut them off? F'rinstance - I've still got quite a hot temper, and if I grit my teeth and don't let it out, sooner or later there's a big explosion [no, I haven't hurt anyone yet, but...] So now, if I'm in a bad mood, I go upstairs and completely blitz the bedrooms. Thus, I work off my bad mood and achieve something useful at the same time. We can't ignore any part of ourselves without becoming less than ourselves - we can, however, set up new pathways so the faults don't hurt ourselves or anyone else.