In no particular order:

1. It likes to make up stories.
2. It’s scared of things that aren’t really there.
3. It thinks it knows better than you do.
4. It has trouble transitioning to new activities.
5. It follows you everywhere, even to the bathroom.
6. It wants your attention RIGHT NOW!
7. It will not shut up.
8. It is impossible to reason with.
9. It is exceedingly difficult to make sense of.
10. It will fucking exhaust you.