I bought paint from the store on the last day of the sale when it had the buy 3 cans get 1 can free promo. Unfortunately I went during the last half an hour before closing and the staff at the paint section was cleaning up and getting ready to get off already. They ended up mixing me the wrong color that could not be matched. I didn't have enough paint to finish the last wall of my room. So I brought my empty can and the color sample to the same Rona again for an extra small can. When I painted it, it was a shade darker. At the end of the day, I had to buy an extra large can to repaint the whole room. It was a waste of my time effort and money!