Lulu was a prostitute. One day there was a raid and all the prostitutes were lined up outside the police station to be taken in one by one. As Lulu stood in line, she saw her Grandma, who didn't know her occupation coming down the street.
Grandma stopped to say hi and asked what the queue was for. Lulu, lied and said that the police were giving away fresh oranges to those waiting. Grandma said wonderful, she loved oranges and went to the end of the queue.
When the policeman got to the end and saw her, he was amazed and said: 'How the heck do you do this at your age?'
Grandma said: ' It's easy, I just take out my teeth, rip the skin back and suck 'em dry!'