Thanks for the link. I did note the concluding statement on the bottom:
Saint Bernards are gentle and calm dogs and make great pets.
Hi antirev1956: I'll address your points: you're right in that I mixed up the owner of the dog between Kurt Franz and Franz Stangl. I saw later that someone corrected me, so I didn't go back and change my post.
I agree with Lubomyr's interpretation which you quoted from UKAR. In addition, don't you think it's a little miraculous that of the two people who escaped Sobibor (I may be wrong but I think Sobibor had two escapees only) that one of them (Dov Freiberg) got attacked by Barry? Also, don't you think it's a little odd that Yankel Wernik never mentioned the dog being a Saint Bernard and never mentioned it being big? I think it's pretty clear that there was a story going around the witnesses, but people didn't have the story straight. And I also think that the story-tellers lack of familiarity with dog breeding made them choose a dog breed that the Germans would never use for a prison camp situation.
By the way, I see you like to use the word "prove" a lot when talking about what I'm saying. Sometimes even putting it in bold letters. I never said I was going to prove anything. What I am doing is pointing out reasons why I don't believe the story. Similarly, when I read about Yankel Wernik watching the SS drink fine liquers and eat fine foods while burning rotten corpses, all the while laughing crazily, I can't prove that didn't happen, but I can mention why I think it's unlikely.