You but a piece of clothing and it comes apart at the seams, chances are you will never buy from that company again
You order a meal at a restaurant and it arrives poorly cooked, chances are you will never go to that restaurant again
You go to a hotel and the room isn’t very clean, chances are you never will go back to that hotel
It just takes one bad time to lose business permanently. If all of your employees don’t understand this, that probably should be your next thing to emphasize
Have a great day!