I've got an English Mastiff I've had since she was a puppy, shes about 3 now. At first when she was younger we thought she'd grow out of the timidness, but she hasn't. She is okay with women but runs from men she isn't familiar with. Typically she hides from them. If they can manage to get close enough to pet her shes fine, but she jets as soon as they look away.
Is this normal for a dog of this breed? I had a co-worker who has a female english mastiff as well, and he said she is also very timid.