If anything, I am certain in my certainty. One of my dear friends who help me out with the chores that I used to do without thinking* used a mop she had bought from a local grocer. She said after using it that she would take it back as it wasn't any good. I remarked, "Oh, I doubt they'll take it back after it's used." In response, she said, "Well we still have the receipt." "But it's been used." (All kindly banter but we were both sure of our own comments.) She brought this up today while helping me again and the same conversation ensued. After several iterations, I put a bet on it. A gentleman's bet for woman but I would still happily pay as I was sure she would come back with the mop, even visualizing the service-counter-help actually saying to her, "No, we cannot take it back as it's been used." She came back with nine dollars, some odd cents and a big smile on her face announcing, "I win," she proclaimed joyfully. I was equally amazed and joyed, adamant that they would never take anything back they couldn't resell. This ingrained in me by "the box and packaging theory of technology" for any returns. (You know the drill.) I made ritualistic bowing gestures and told her that money was hers to keep as it wouldn't exist in my house otherwise. And it was because of her innocent face that they actually did that because if I had brought it back with my worldly or world-weary face, they would tell me,"!#$%^&*!@#$!". Again, I am certain of the latter. We are now bantering on who gets to keep the money. I'm sure I will win this one. Certain of it.
Moral of the story? Keep your receipts and if you don't like something, take it back. This is a consumer driven economy and if a product is not worth the money charged you, it should be returned. Instead of voting with your feet it's voting with a receipt.
*Please read the world-renowned Spoon Theory written by Christine Miserandino