Ahem, every question has their own merit. You can't quite honestly tell me that people make threads like these all for the basis of post count bumping or any other little whimsical thing on the side. Lying may be a part of human nature, but many people quite honestly fail to realise that the thread creator is not asking this question for the typical answer of "Yes" or "No" at face value, usually things like these go a lot deeper in terms of "Yes, I have lied at least once in my life, like the time I did this and that." This, my friends, is the sort of answers that is usually looked for and questions like these have been asked for the sole purpose of getting constructive responses. There have been many threads like this. Specification shouldn't even be hinted because members are also required to use their common sense to determine just how this question can actually be worthwhile. And it amuses me how literal some people take the question, and even rule off the thread as nonsensical because they failed to see anything deeper about it.
Regardless, one more comment about how apparently stupid this thread is and anything rude to the thread creator will resort in infractions being passed out.
Anyway, I have very well lied in the past though I discourage myself to ever do it. It always makes me feel as though I'm not being honest with myself whenever I lie and it gives me more of a heavy burden with my morals just knowing what I try to accomplish with doing that. However, if the situation beckons it, I would find lying to be a last resort otherwise things can't quite possibly get any better if I do otherwise in that moment.