I was asked directions to a competitor's store once... When I couldn't produce the directions because I was unfamiliar with that area of town, he snidely remarked, "You don't live here, do you, Softlines Ninja?" That was within my first month and I had just recently gotten my name tag. It was the first time a guest had used my name and it brought me near tears. I told him guest services might be able to help him and I went off to hide in the returns closet to calm down.
Now I very rarely give directions to anywhere outside of the store. It's just not worth the time and aggravation when they repeat the directions back incorrectly (because I am very wordy when I give directions) and I have to correct them.