First person, and an interesting note. I was experimenting with lucid dreaming for awhile, with some very minor success. One thing that ALWAYS woke me up though, was doing something I had never done in real life. I was unable to breathe underwater. The mere attempt would wake me.

Then I got scuba certified in real life, and like magic, I was suddenly able to breathe underwater in my dreams.

It makes me wonder how you think about yourself in real life.