Original Sin

There was this hooker who mistook a Salvation Army man for a soldier and propositioned him. The Salvation Army gent said:

- Ma'am, you may be forgiven, as a pitiable victim of circumstances. Tell me, are you familiar with the concept of 'original sin'?

The hooker replied:

- Well, maybe and maybe not. But if it's "really" original, it'll cost you an extra $20.