In college the night before a big computer programming project was due, all of us students met in the computer lab and basically copied one student who had his working. The Professor obviously noticed and told us all to do it again.
Not notebooks but my Dad never let us kids use his guitars because they were too nice. So we never learned guitar. I picked it up later in life and now leave them out for my kids to mess with. Sure, they'll be out of tune and the pick will go missing, but I feel it's more important that they get used as much as possible for everyone. No point in leaving stuff stored away.