No means No!!

Here's a good question. Why is it when you say NO to your kids they don't think you are serious. I mean No means NO!!!! and yet they still put on those puppy dog eyes, and continue to ask you... again and... again. They seem to think if they ask sweeter and sweeter that I might change my mind. To be honest I suppose in the past I have given in... but on a scale of 1 to 10 I have only given in about 3 times. You would think they would understand that the odds are against them and to give up.