there's a discussion about that, here :
No. Why did you have to tell us that? Now I'm going to have to try to figure out how you did that, because I couldn't get out with more than one until I brought two in. There goes my evening :P
Edit - nuclear facepalm... face-to-face. I had to use that to solve another level. How did I not think of that until now?? It's even easier to set up on this level than it was on the level that needed it for the "normal" solution.