The Obstetrician's Wife

At a big cocktail party, an obstetrician's wife noticed another guest, a big, over sexed blonde, making overtures at her husband. It was a large, informal gathering, so she tried to laugh it off until she saw them disappear into a bedroom together.

At once, she rushed into the bedroom, pulled the two apart and screamed, "Look you hussy! My husband just delivers babies, he dosen't install them!"