1. Your plate will inevitably be one heaping pile of side dishes.

2. This will be 99% of the plate.

3. Everyone will get mad at you for eating all of the sides because they don't realize it's the only thing you can eat.

4. It is nearly impossible - and uncomfortable - having Thanksgiving dinner at homes with vegetarian free families.

5. Because you have to decline almost everything that is being served.

6. Someone will be sure to make a rabbit joke at least once.

7. "Are you suuuure you don't want any Turkey?"

Yes, I'm sure. 

8. Everyone will make their assumptions as to why you're a vegetarian.

9. You are introduced as the "vegetarian" of the family. 

10. Luckily, the most important items served don't have meat in them...