OohIsay

The Smiths had tried for years to have a child and not having had  any luck, decided to use a proxy father to start their family.

 On the day the proxy father was to arrive, Mr. Smith kissed his wife and said, "I'm off.  The man should be here soon".

 Half an hour later, just by chance, a door-to-door baby photographer  rang the doorbell, hoping to make a sale.  "Good morning madam. You don 't  know me but I've come to...."