If you've been munched on by a dog with your fingers inside the letterbox then there isn't much you can do about it.
Technically you were breaking and entering, seems daft I know, but that is what my mates in the post office tell me, and they have way more experience with dogs than we do!
AS I've said in another post about dog biting, in over 23 years as a window cleaner I've not been bitten once.
One of my dogs was barking at the postman once, the postie didn't know i was watching, he cornered the dog and started driving the boot in.
I was a little angry at that....
so much so the postie was sobbing and begging me not to hit him by the time I'd finished with him, and no, I didn't hit him, but by god I wanted to.
He tried to say it had nipped his ankle, he changed his tune when I showed him where I was standing and had watched the whole thing.
A barking dog is annoying, but it doesn't deserve a kicking for letting me know someone is at the gate!
Ian