OK the thread has already diverted from what is a WDT to whether internal or external is better.

I think this is one area where genaralizations ( I think the spelling is wrong ) dont help much.

While the odds are defenitely in favour of the external dogs, there is defenitley a case for the internal ones. Atleast it is good to have a dog than no dog.

And to prevent it from biting is totally a different issue altogether.

Raghu