Where is that joke? You know! the funny one.

Someone posted a joke about a lie detecting robot and I can't find it now. Does anyone know where it is? Thanks.

http://www.obesityhelp.com/forums/amos/board_id,4856/cat_id, 4456/topic_id,3604629/a,messageboard/action,replies/#2843513 4

Thanks, Michael.  I tried to tell this one but after the first knockdown I realized I had forgoten some key elements. Everyone was laughing at me struggling to recover some sense of brain function instead of at the the joke. I was never able to fini**** Just as well as I was at a dinner party with a split family with kids, step-kids and half siblings and it's possible that this may have been a sensitive topic.