When you do a favor with the greatest pleasure and willingness, when you give a gift on a special occasion, when you do your work for the day. And they say thank you, you answer: "Don't mention it". You like to be told: "Don't mention it". When this phrase appears, it detracts from the gesture, the gift, the act. You mean it was worth nothing. I do not care. The energy and the blessings it brings back are let out; with one stroke we close the door to the energy of gratitude.