Here is some proof that proofreading is important!
Mixing bowl set designed to please a cook with round bottom for efficient beating.

For sale: an antique desk suitable for lady with thick legs and large drawers.

Four-poster bed, 101 years old.  Perfect for antique lover.

Wanted.  Widower with school-age children requires person to assume general housekeeping duties.  Must be capable of contributing to growth of family.

The hotel has bowling alleys, tennis courts, comfortable beds, and other athletic facilities.

Mt.Kilimanjaro, the breathtaking backdrop for the Serena Lodge. Swim in the lovely pool while you drink it all in.

Author Unknown

Here is some proof that proofreading is important!
2 female Boston Terrier puppies, 7 wks old, Perfect markings, 555-1234. Leave mess.

ForSale — Eight puppies from a German Shepherd and an Alaskan Hussy.

Great Dames for sale.

Dog for sale: eats anything and is fond of children.

Dinner Special — Turkey $2.35; Chicken or Beef $2.25; Children $2.00.

Author Unknown