1. spill water on it
2. spill… not water… on it
3. leave it on for more than a month without restarting
4. fail to update any software
5. open every adobe application you have at the same time
6. use it while its hard drive isn’t level… like when you’re walking around…
7. expect it to work the way you think it should

just, you know, from personal experience. or something.