Family status
Google assigns a family status to all products to make sure that content is shown to an appropriate audience. All products must be "family safe". All products in the "non-family safe" or "adult" categories are not allowed on Google Shopping.
For example, the following products are non-family safe or adult:
Adult sexual products and content (including product images and/or landing pages containing nudity or adult sexual content)
Alcohol
http://www.google.com/products/catal...d=0CIQBEPMCMAM

http://www.google.com/products/catal...ed=0CGkQ8wIwAQ

Lyin bastiges.