After considering the overtaking move of Barrichello to Schumacher on lap 66 of the Hungarian GP, the stewards have found that Schumacher deliberately moved away from his line to block Barrichello, and hence receives a penalty.
I just found this video from a manouver between Massa and Webber in Japan 2008.
I can`t remember if there was a penalty to Webber. It was similar at what Schumacher did.
[youtube]http://www.youtube.com/watch?v=elyxIhMW_No[/youtube]
"Why doesn´t someone tell Pedro it´s raining" - Chris Amon, 1000km Brands Hatch, 1970