Pissed themselves laughing

There were three nuns in a desert. All three were dying of starvation and thirst. After a couple of days of walking they came to a castle in the middle of nowhere. Too their dismay there was no food or running water in the castle, all that was there was a bag of flour. The head nun said "I know what we will have to do, because we have no running water we will have to try and pee on the flour so we can make some bread and survive". She asked one of the nuns to try first. She squatted over the flour and tried to pee, but after half an our she gave up. The head nun screamed " What a waste of space you are, we cud die because of you!!", so she asked upon the other nun to try. The nun squatted over the flour and tried her hardest but after forty five minutes she gave up without any success. The head nun screamed once again, "Both of you are useless, I will have to try myself!". So she squatted over the flour and tried her very hardest to push out a pee. She tried so hard that at the end she farted, and blew all of the flour away, and all the nuns pissed them selves laughin.