The conclusion, therefore, at least in the matter of cheating at dice, is that sin is indeed original. Without time for reflection, people will default to the mode labelled “cheat”. Given such time, however, they will often do the right thing. If you want someone to be honest, then, do not press him too hard for an immediate decision.

via HackerNews

The HN comments are worth reading.

Fwiw I think this is wise advice:

If you want someone to be honest, then, do not press him too hard for an immediate decision.