My first LD was intentional, I've been doing reality checks for a while, especially nose plug RC, which is my absolute favourite.
I once woke up in my bed, did the nose plug RC but could still breathe through the nose. The feeling was indescribable.
Despite the euphoria I didn't wake up, I started floating around my house. Once I discovered I can fly I really wanted to fly out of the window but my dream felt so real I was afraid to. Then I woke up.