I'm the same way with not wanting to confront people about things. So even though I think your friend needs to be told in no uncertain terms that her dog's behavior is not ok, I have advice for you if you decide to go and not say anything.
1. When you come in, cross your hands at chest-level, keeping them out of dog reach
2. Don't look at the dog. Ever. I don't know what kind of aggression this dog is exhibiting, but my female's aggression is totally fear related, and it won't stop until she's sure that the newcomer is not interested in looking at her.
3. Keep your back straight and your demeanor confident. Don't charge at the dog, but don't let the dog stop you from walking wherever you're going in the house. Just keep walking in the direction you're headed, even if it means going right past the dog.
4. If not looking at the dog doesn't work, turn your face away from the dog. Don't back away, but just make it clear that you're not interested in looking at it. If possible, let out a big yawn when you turn your head too. This is a calming signal.
I don't want to imply at all that it's your fault you got bitten, because it is most surely not. But there are calming signals that I think everyone in this world who ever has contact with dogs (i.e. everyone) should know. These things can help you out in the event of a dog attack, although sometimes there's simply nothing that can be done, like in the tragic stories we hear about people being killed by packs of dogs.
1. When you come in, cross your hands at chest-level, keeping them out of dog reach
2. Don't look at the dog. Ever. I don't know what kind of aggression this dog is exhibiting, but my female's aggression is totally fear related, and it won't stop until she's sure that the newcomer is not interested in looking at her.
3. Keep your back straight and your demeanor confident. Don't charge at the dog, but don't let the dog stop you from walking wherever you're going in the house. Just keep walking in the direction you're headed, even if it means going right past the dog.
4. If not looking at the dog doesn't work, turn your face away from the dog. Don't back away, but just make it clear that you're not interested in looking at it. If possible, let out a big yawn when you turn your head too. This is a calming signal.
I don't want to imply at all that it's your fault you got bitten, because it is most surely not. But there are calming signals that I think everyone in this world who ever has contact with dogs (i.e. everyone) should know. These things can help you out in the event of a dog attack, although sometimes there's simply nothing that can be done, like in the tragic stories we hear about people being killed by packs of dogs.