LGD vs Burros

[Taffy]

I was reading an article in Caprine News this morning about experiences with LGD's over the years and the pluses and minuses of them. I am also reading a novel where they use burros to protect the livestock. Have any of you ever used burros? It seems to me the burros would be a better choice in many ways for protection. No barking, prowling off the property, etc.