1. The XP 'search' puppy scares him.
2. He's distracted by cats chasing his mouse.
3. The FETCH command isn't available on all platforms.
4. He can't help attacking the screen when he hears "You've Got Mail".
5. He gets carpal paw syndrome.
6. The fire hydrant icon is simply too frustrating.
7. It's too messy to "mark" every Web site he visits.
8. Saliva-coated floppy disks refuse to work.
9. Tail wagging is a dead give-away he's browsing www.purina.com instead of working.
10. SIT and STAY were hard enough; CUT and PASTE are out of the question.