Roy,Happy Birthday! :thumbsup:
For much the same reason as you, Wyn, I don't lend and rarely borrow books.
Copyright is a difficult one. I am guided by the principle of "to do unto others as you would have them do unto you".
I am further guided by the principle of free and fair use for education, demonstration and research provided I have agreed to the use of my material and it is not assumed. This is usually for photographs rather than the written word.
Looking at some of the wholesale theft of copyrighted material, such as films, music and software, that goes on, I don't see this particular instance as an issue.
The other side of the coin, of course, is that if reproduction permission is sought often enough then the publisher might consider re-publishing!