Here are a few absolutely ridiculous warning labels:

On a blanket from Taiwan:
Not to be used as protection from a tornado.

Warning on fireplace log:
Caution — Risk of Fire.

A warning on a pair of shin guards manufactured for bicyclists:
Shin pads cannot protect any part of the body they do not cover.

Warning on an electric router made for carpenters:
This product not intended for use as a dental drill.

On a bottle of shampoo for dogs:
Caution: The contents of this bottle should not be fed to fish.

On a hair dryer:
Do not use in shower.

On Marks & Spencer bread pudding
Product will be hot after heating.

On a string of Chinese made Christmas lights:

For indoor or outdoor use only.

for more ridiculous warning click here.