When I was traveling in Yunan Province China, I went past a restaurant where they had a cage jam packed full of dogs.
The were taking them out one by one, killing, skinning and butchering them in the street.
I saw roasted dogs heads and other parts for sale at a market in Vietnam. They believe that if they hang them from a tree and slowly beat them to death, the meat will obtain the properties to make them 'strong' which normally in Asia means shag better.
Horrible and barbaric customs.