UGH I hate that. One time we were having a garage sale to benefit our friend, and we had a bunch of people from church there helping us. One of the women is blind, and has a guide dog. She was sitting towards the back sorting things, and this woman walked by and had a near heart attack when she saw the dog. the dog was SLEEPING under the table, 15 feet away from her. She told me I had to move the dog or she would flip out. Try explaining to the dog specifically raised to guide her owner why she had to be locked in the house without her so this woman could look around and not buy anything!