Do you pet dogs you don't know?
Sometimes when you go into a grocery store you will see a dog sitting outside, waiting for her/his owner to return. I have been brought up with the golden rule of "don't pet a dog you don't know", but I really have problems with that sometime. Take last weekend for example, a black lab was sitting outside and when he saw me getting off my bike he started wagging his tail and gave me a big dog-smile. I just couldn't stop myself from petting him.
What's your thoughts on this? Is it reckless to pet a dog you know nothing about or is it rude even (I've heard some people get mad if they see you pet their dog without their permission)?