lying

I need advice on how to my handle my almost 5 year old son. He has been lying a lot lately and today takes the cake. We went to the sprinkler park with a friend and son in her car. Had a great day. My DS is a year older. On the way home, he starts saying some bad words (poopyhead, stupid). I shoot him some looks and try to ignore it, because I know he is looking for attention. I praise her son for being so well behaved in the car. So, then as we were a few minutes from our house he whispers "you are a jerk" and then says out loud, you are a jerk. I say to him why would you say that and he says, DS friend told him to say it. I said I heard you whisper and he kept saying that DS friend told him so. I didn't think DS friend told him so and my friend said that her son doesn't know that word. I tell him, be honest, its better to tell the truth then to lie. He starts hysterical crying, saying that he didn't say it, etc. I told him I was disappointed in him and he would be losing some privileges until he told me the truth. He continued to cry, and insist he was telling the truth. When we got in the house he had to sit on the couch without playing anything while I heated him up dinner. He got dinner, no dessert, went into the bath, I read him 2 stories and he went to bed. The entire time he still insisted that DS friend whispered it to him. I let him know I was disappointed in his behavior. I don't know what else to punish him with. This lying behavior needs to stop. We had a conversation about how he could have gotten his friend in trouble and he didn't really seem to either listen or understand me. I am debating on either taking away playdates with friends son for the rest of the week (they are our across the street neighbor so we see them quite frequently) or taking away television. ANy other suggestions on what I can do? I am really with this kid this summer!
Thanks if you got this far!

Re: lying

My dd is very similar (also 5). Honestly, maybe her son did say it at some point, just not in the car? Or did your ds mean that the friend was the one who said it in the car? I wouldn't go too heavy on the consequences, especially with something trivial like this. I understand you are looking at the big picture; that he's lying. My fear with my daughter was that she would continue to lie due to fear of the consequences, KWIM? I started going the whole moral route with, "well god knows if you're telling the truth or not and/or you know if you're telling the truth or not." I've also gone as far to tell her that a black line shows up on your tongue when you lie. Believe it or not, this has been the most effective b/c when I ask her to stick out her tongue and she doesn't want to show me, I know she's lying. I've told her only moms and dads can see it(I'm such a hypocrite because I am lying to her!!) maybe read a story like, the boy who cried wolf and try to convey that if he lies, people won't believe him when he's telling the truth abouth something. Just an idea...
Botox line, I think lying is part of human nature and your son sounds pretty typical. It's frustrating but I would back off the consequences unless absolutely warranted.

lying

I use the spot on the tongue trick too! Works every single time! LOL!! It's always silly stuff like brushing teeth, etc.

I think the punishment you gave him tonight was as far as it should go. I wouldn't punish him for the rest of the week over it to be honest.