[nkurz]

They exist, but are well aware of the risks. And sometimes they find it wise not to test the legal boundaries:

  Any book you cannot scan?

  Unfortunately, WE CANNOT SCAN ANY PUBLICATION BY McGraw 
  Hill. They do not allow us to scan their publications. When 
  we receive any publication by McGraw Hill from customers, 
  we will return it back by charging actual postage fee."

http://1dollarscan.com/faq.php#8a

[Turing_Machine]

Good to know (/me makes note to avoid purchasing anything by McGraw Hill in the future).