Orkut introdiced a new feature that will help you to scrap a person which will not be visible to others. When you scrap a person you can choose whether the scrap need to be public or private. If you want to send him a private scrap just select the "Only me and him/her".
Orkut says they will be adding one more option " Visible only to selected friends" , which will enable you to select few friends and they only can view that.
It seems that this is available only on the new design of the Orkut alone. Click on if you are using the old version of it.
Read more about private scraping here