[clivehawkins]

I'm in Italy where university students are not encouraged as such to copy entire course books, but they are pointed in the direction of the nearest photocopy shop!
I get about half the class turn up with photocopied books, most of which have all the answers written in. After a year of banging my head on the desk in despair along with talking to several brick walls, ie the administration, I gave up getting worked up about it.
I even spoke to the publisher's rep about it. I was told that half was actually quite good, in most cases it was nearer two thirds.