person A: I went to a restaurant for mexican food with my friend and she had a roach crawl off of her salad. It was horrifying.
person B: That is awful. I would definitely not pay and never go back again.
person A: They offered both of us money back and free meals for next time but we are never going back.  It turned me off of mexican food which is a shame because its my favorite!
person B: They will lose a lot of business over that one. Word of mouth is the best way to hurt someone. That is gross and I wouldn't go back either.