Some examples of why the human race has probably evolved as far as possible.  These are actual instruction labels on store products:

On Sears hairdryer: Do not use while sleeping.

On a bag of Fritos: You could be a winner!  No purchase necessary.  Details inside.

 On a bar of Dial soap: Directions: Use like regular soap.

 On some Swann frozen dinners: Serving suggestion: Defrost.

 On a hotel provided shower cap in a box: Fits one head.

On Tesco's Tiramisu dessert:  (printed on bottom of the box) Do not turn upside down.

On Marks & Spencer Bread Pudding: Product will be hot after heating.

On packaging for a Rowenta iron: Do not iron clothes on body.

On Boot's Children's cough medicine: Do not drive car or operate machinery.

 On Nytol sleep aid: Warning: may cause drowsiness.

On a Korean kitchen knife: Warning: keep out of children.

On a string of Chinese-made Christmas lights: For indoor or outdoor use only.

On a Japanese food processor: Not to be used for the other use.

On Sainsbury's peanuts: Warning: contains nuts.

On an American Airlines packet of nuts: Instructions: open packet, eat nuts.

On a Swedish chainsaw: Do not attempt to stop chain with your hands or genitals.

On a child's Superman costume: Wearing of this garment does not enable you to fly.

On an Almond M&M's package: May contain peanuts