Among lawyers, this can show high status. Lying to a court is completely unacceptable, and can make an advocate useless to future clients. However NTL is OK.
The pupil barrister: “To be honest...”
Head of Chambers: Lawyers are always honest. The lawyer will say, “To be frank...”
(taken from the BabyBarista blog)
A friend of mine recommends writing with the non-dominant hand to access alternative brain functions. I have done this, and found myself disagreeing with myself.