When I first came to live with my mom (almost 15 years ago), she was in graduate school working on her Ph.D. I used to climb on her computer all of the time and mess up her papers and books. My favorite thing to play with were pencils and mom had a lot of those because she was teaching mathematics to college students while she was working on her degree.
Mom also had these really thick books that she had to study while she was in school. I was always there to give her a break from her studies.
One of the funniest stories about me and mom's school was when I attacked some of the mathematics exams my mom was grading. When she went to give back the exam to her students, there were teeth marks in the paper. Mom said she told the students that instead of the dog eating their papers, that I showed them what I thought of their work by biting their papers.