I'm asking this because of the lucid dream I had last night. I was planning on running some experiments in dream control the next time I achieved lucidity, and when I realized I was dreaming, I had to spin and drift to not wake up. So a new scene came together, which was a dentist's or doctor's lobby, something of that sort - front counter, chairs, coffee table, an aquarium, and a few DCs doing time-killing, person-waiting for doctor stuff.

One of the DCs was the Burger King, reading a magazine.

I decided right then and there to set aside the experiments for a bit and beat up that creepy M-F. Walked up to him, when he looked up from the magazine I punched him in the face and after that it was an all-out brawl, knocking over chairs and such. The fight ended after I knocked him down long enough to grab a chair, clobber him over the head with it, then lift him and bodyslam him into the coffee table in the lobby.

After that I went ahead with my planned experiments (transformations).

Has anyone else run into an unusual DC - a celebrity or character - without summoning them? That was a first for me, and really funny and surreal.