No, I can't say that I have.

Have you ever attended a competitive eating event?

No

Have you ever been in a room with the people you hat the most?

No

Have you ever been in a room with people you hate the most? (Sry for double post,ignore the above post)

Yes (I suppose in high school classroom I didn't like a few people and had same class with them)

Have you ever played the Atari 2600?

yes

have you ever stabbed someone

??? don't want to talk about that.
Have you ever got expelled from somthing

no

Have you ever felt the urge to crush someone's face? :3

no (only crush someones online character face while playing CoD)

Have you ever puked and dumped at the same time?

In the same sitting? Yes. In the same motion? No.

Have you ever been placed in a rear naked choke by a professional MMA fighter?

No

Have you ever seen St Pierre fight in UFC on tv?