I could use a little input from the gallery, if you would cast the net for me.
Now and then a jujutsu guy will do a demonstration where he not only escapes/counters multiple attackers, but he piles them up on the floor in a squirming mass, eventually ending up with five or six people tapping madly and giving every sign of being under control and in pain.  
How do they do that?  When I try to make a pile the students all slither away and get up again.
There must be a way to pin person A (from a standing position) and then roll person B down on him in a way that person B's weight maintains the pin on A.  Lather, rinse, repeat. 
It would be a chain of interlocking pins, I suspect. 
I'd be looking for a video.   Thanks!   BDC
			 
                        





