Google is an aggressive company, no company "100% doesn't bill". If you go into this line of work without researching the risks I would agree you are not very smart. Fines and jail time are completely reasonable responses for a company that has someone committing fraud against them. 1 Pixel should not get you in trouble, but I would absolutely advise against sending ANY "stolen" (SE'ed, refunded, whatever) products to your real home address, especially more than once.