more than 60% of the population have cheated on their partners at least once

I find this hard to believe but yet compelling. I have not, for the record, cheated.
Truth about lying and laughter

Are you a good liar? Most people think that they are, but in reality there are big differences in how well we can pull the wool over the eyes of others. There is a very simple test that can help determine your ability to lie. Using the first finger of your dominant hand, draw a capital letter Q on your forehead.