My labrador is pretty strong and heavy but doesn't really have the teeth to shred you. My dog is more likely to lick you and beg for food as a form of attack.
Labs actually have a really strong bite - obviously not up there with rottweilers, pitbulls and other devil dogs, but enough to do some serious damage. The other thing about Labs though is that they are extremely good natured - something that owners of devil dogs always say applies to their dogs as well, but somehow you actually believe it with Labradors
