Generally speaking, books don't cause much harm. Except when you read them, that is. Then they cause all kinds of problems.
Pseudonymous BoschYou know, people always warn children about taking candy from strange adults. But they never warn us adults about taking candy from strange children. All those sweet-looking kids who sell boxes of candy bars on the street to help pay for schooling - how do we know what's in those bars? And don't even get me stated on that nefarious institution designed to lure unsuspecting customers into buying mysterious frosted goodies: the bake sale. Adults, be warned: if a child wanted to poison you it would be a piece of cake! Literally a piece of cake.
Pseudonymous Bosch