The Pope has put a sign on the door to his suite in his Vatican residence telling people they are not allowed to moan.
The sign is red and white and reads: "Violators are subject to a syndrome of always feeling like a victim, [with][ the consequent reduction of your sense of humour and capacity to solve problems."
The notice goes on to say: "The penalty is doubled if the violation takes place in the presence of children.
"To get the best out of yourself, concentrate on your potential and not on your limitations.
"Stop complaining and take steps to improve your life."
A photo of the sign was uploaded to the Vatican Insider website and Reuters editor-in-chief Andrea Tornielli has said the notice is real, The Daily Star reported. She has interviewed the Pope many times.
Italian psychologist and self-help author Salvo Noe is said to have given Pope Francis the sign.
The Pope then promised that, for a joke, it would be hung up in his office.