I'm not really squeamish, and I'm cognisant of the cultural difference but.. I would caution people against image searching for tied up dogs in the context of China unless you're prepared for some pretty shocking stuff.
I know, but I don't think very many people know this even exists. That's the worst part about this practice -- it's so horrible that it's too horrible to even share. As much as I hate it, I know I can't share pictures of this on Facebook because people will likely hate me more than they hate what's going on.