I have heard many different stories of dream characters who intervene or aggressively act against you while lucid. I've heard stories of bodyguards appearing when people search for their dream guide, bullies blocking off locations, ect. Never actually experiencing any of this.

Today I had a dream I was with my friend and I was trying to become lucid... Which is weird considering I know that lucidity is a change in thought process. I felt like I had to work to achieve that state in my dream, and while I tried to focus my attention, three tall skinny characters came up and cornered me in response to my effort. The dream slowly cut off there and I don't understand why they came at me like they did.

Have you ever had a DC try and stop you Upon lucidity, stop you from finding your dream guide, or try and stop you from achieving something dream?