There are a number of videos showing live skinning of animals in China. But I suppose you're referring to this one:

http://www.thepetitionsite.com/1/Stop-The-Live-Skinning-Of-Animals-In-China/

The picture in this petition is the most enduring image for most people. I can't forget how the animal lifted its head, opened it eyes seeing itself skinless.

I felt very agitated. I clenched my fists. A very awful experience. The images of the cruel process keep appearing in my mind for days.

I forced myself to watch it because this is the reality I must confront if I want to be in this line to fight against animal cruelty.

The live skinning process was made into DVDs and distributed in many vegetarian restaurants here in Malaysia.