Miss Prim, The Elderly Spinster, Is Giving An Introductory Talk At The Girl's College.

"Now, girls," she says, "whenever you go out, remember: no smoking in the streets, no bad conduct in public and when the men bother you, ask yourself: Is an hour's pleasure worth a lifetime of disgrace?

Now, girls, are there any questions?"

A voice from the back of the hall cries, "How do you make it last an hour?"