Every time I want to I think of the hurt around me it causes and most of the time for me that is enough..... that's my reasoning. Plus I have a pact with my wife we made in high school that I wouldnt if she wouldnt and she wouldnt if I wouldnt.... it seems to be working so far and that was like 6 years ago or something.... we've had a few slip ups but they are few and far between.