Peter and David were lost in the Sahara, hungry and thirsty ... When they found some men in their tents. Happy, they went to ask for food and shelter. An arab man asked them : what are your names? Peter replied Peter, but David, in fear, replied Mohamed. The arab man said: Well Peter, come with me i'll get you something to eat, and as you know Mohamed, it's ramadan, our holy month of fasting, you'll have to wait nine hours to eat, in the meantime you can sleep in my tent.