Has anybody had the thought or set the goal to get revenge or just embarress (spell fail) somebody you despise in a dream? Maybe its a kid from school, or maybe its that ex. Whoever it is, does anybody ever set this as a goal or actually do it.

My experience with this:

There was always this kid in school, he never talked to me and i never talked to him, but he just annoyed me for really no reason except for just being there. I got lucid in this one dream, it was during school and I got the idea to get some revenge. After about a minute of searching, I found him in this classroom. I approached him. I had the intention of using hid body, I became this shadowy spirit form and entered hid body, which was hard due to him resisting. He yelled and screamed but I finally took control.
When I did, I said and did some pretty embaressing things with his body in front of the class. When I finished I went back into my own body and found him crying while we all laughed at him. It made me happy.