All the participants in our sample had earlier stated that cheating on the task would be immoral. But when evaluating their actions afterward, most not only continued to view themselves as fair even when they weren’t, but also readily condemned others for cheating in the same way. Their minds quickly whitewashed their own untrustworthy actions. They didn’t ignore what they did; they just created a story for why it was O.K.
This article resonated with me yesterday, so much so, I brought it up in conversation with someone, but, I found I couldn't keep from sounding wishy washy. Maybe there is another way of saying to someone "stop trusting yourself" that would be more palatably substantive. My exit strategy was to recommend the article. I told the guy it was very short, which it is... trust me.