How I respond depends on who exposes my lies and what the consequences are. If the police expose my lies and the consequence is prison, I'd be very distraught... Or, if some powerful and influential figure exposes my lies and, as a consequence, my reputation in the community is ruined, I'd be very distraught... until I moved and found a different community. Then it wouldn't matter much anymore... If the person who uncovers my lies has little or no credibility in my social circle and the only consequence would be losing the trust of said person, I wouldn't really care much at all...

As a result of being distraught, I would probably seek vengeance, assuming the slander was so vile that my reputation was irreparable. Although, I can usually alleviate any distrust quite easily...

It is most definitely worth it. Firstly, I have a very low tolerance for boredom. That risk of being caught just makes it more exciting. Secondly, most of my personality is based on lies, which I've mentioned before. Psychopaths don't have a "true self". Strong, complex emotions which help form people's characters in depth are lost to psychopaths. For example... I had an abusive father. For most people, having endured abuse as a child would elicit such strong emotions that it would become a part of their core self. I, on the other hand, don't have those strong emotions, and I don't have the emotional response that is normally seen with trauma victims. However, I see people's emotional reactions to such events, and, while I don't understand those reactions, I do mimic them. So, while I don't have the emotional pain of someone who had been abused, I do play that role, emotionally... mostly because people respond better to someone who has a deep and complex character, and because people expect me to have emotional depth... It's still based on lies.

Actions do speak louder than words, which is why we learn to lie with actions too. Psychopaths are more likely to go out of their way to help someone than non-psychopaths, and I'm no different. However, this act of kindness isn't the result of altruism, it's just... an act, nothing more.

To a psychopath, "owning up" isn't noble at all, and it only seems noble because the psychopath learns to not get caught again... Again, I'm no different. However, this isn't something that I have control over. I can make sure that my misdeed will not have an encore, but that decision isn't based off feeling guilty for doing the misdeed or integrity; i.e., characteristics of a truly honorable person... those are things of which I'm not capable...

As much as I hate to say it, one of the characteristics of psychopathy is narcissistic tendencies, hence the ego...