[Judith Anne]

Our dog, an American Mastiff (from the English mastiff breeder Fredericka Wagner of Flying W Farms, has an ironclad lifetime temperament guarantee.

He was big bucks, but he is worth it. Extremely gentle. This is the most intelligent and enjoyable animal we have ever owned. He's one year old.

Here's the site with recommendations from owners:

http://www.flyingwfarms.com/amastiff/thumbs.html

[passionfruit]

Whoa! I just read your post, and I want you to read mine, #32. My mastiffs were gentle giants too, until the day the first litter of pups were born. The change was immediate. Our Mamma dog bit someone she knew that first week, and the aggressiveness didn't subside, even after the pups were all gone. I was terrified that they would escape our yard and be loose in the streets. Whats worse, I had one that could leap a six foot fence. Keep a close eye on yours, don't assume that if their friendly now they will always be that way. Our were 2 years old when the problem began. It was heartbreaking to put them down, because we loved them, and it was a huge financial loss too, because we had paid thousands. What we paid was tens of thousands less than we would have paid if someone had been seriously injured.