I was now out somewhere with a group of people, including the friend and some random dream characters of a wide range of ages and ethnicities. We were in a big concrete building on an upper floor--it was a very bare, industrial sort of building, all metal and concrete and very Soviet Eastern Europe. We must have been on a guided tour, because we had all entered a rather dodgy-looking restroom (this was part of the tour, not a bathroom break). About that time, I realized that we were being guided in there by Russian mobsters. They did the requisite yelling ("get down! Shut up!" etc.), and I dove into the first available stall. Unfortunately it turned out to not have a door, so my hopes of crouching on the toilet to avoid detection were dashed.
The mobsters singled me out for some reason and yelled something at me. I'm not really clear on what happened next because it was very quick, but I realized that a grenade had been unpinned and it would behoove me to get out of there. I had a very weird sensation of simultaneous extreme fear and complete fearlessness, and for once my dream running was very effective (probably faster and with more coordination than in real life). I ran right past them and out the door to try to get out of range of the grenade.
I dashed out into a hallway and out the door, which led me to a long concrete exterior staircase with no railing (this was probably at about a 5th-floor level). At this point I realized that the bathroom mobsters had let me go knowing that they had companions outside the building who could take me out. I got to the bottom of the stairs and started running across an open space of packed dirt (there were buildings all around similar to the one I'd come out of, all deserted). I knew that there were mobsters around, but I also realized that I had to keep running even though the open space left me vulnerable to being picked off.
At about this point, I think I was caught by one of them, but this is where things got weird. Because when I realized that I was being caught, I also realized that this was a movie dream, and my perspective shifted to outside myself. When it shifted, I saw that I wasn't really me, but a much smaller teenager with long dark hair and bangs. This smaller "me" started belting out a song and I realized, "great, I've gotten myself trapped in a musical". [I'm not a real-life fan of musicals; I find it disconcerting how they burst into song at random times.] I tried to put the movie/dream on fast forward so I wouldn't have to listen to the songs and could get to the end faster, and it worked.