once while canvasing, a Bull Terrier bit my sons fingers putting the leaflet through the letterbox, my son really hurt and surprised, the owner opened the door, sees my son had been bitten, very defensive, he says i never ask you to come here and put leaflets through my door?? plus threatened my son, not once did he say sorry, my son said the brushes behind the letter boxes stop the leaflets getting through so he pushed them until they fell on the inside, hence why his fingers where bitten,