Which makes me think of yet one more stupid way that companies misuse the internet...
Websites where you are forced to register before you are allowed to find out anything about the products, the prices, the availability, anything. Really?
And for those, we keep a couple of dummy email accounts that we never check the email on. Also, the names on those accounts are tailored to the purpose and while not obviously obscene do have underlying meaning. And phone numbers if required are bogus or to a recorded sex line or something.