Lets be 'aving you, Plod. Try this one for size...
Snow White wakes up one morning and the sun is shining. She goes downstairs and says to the Seven Dwarfs, 'it's such a nice day, and you've worked very hard recently, so I'm going to take you to the zoo. Later we shall go and have tea with my friends, the nuns, at the convent'.
They had a wonderful time at the zoo, then in the afternoon they climbed the big hill to the convent. Dopey Knocked on the door, and the Mother Superior answered. 'Do you have any dwarf nuns?' he asked, in a trembling voice.
'No, my son', she replied.
'Well are there any dwarf nuns in the world?' he asked, as he started to shake.
'Not that I know of', said the Mother Superior.
At this point, Dopey fell to his knees.'Oh sh**, I wasn't to know', he cried.
All the other six dwarfs fell about laughing, shouting, DOPEY SHAGGED PENGUIN. DOPEY SHAGGED A PENGUIN!
Edit:
Under investigation
This one is very close to the edge! I shall have to seek further advice.