What a slick use for the stuff. And, I suppose, if they hear a funny sound from inside the building, they can light the silly string and use the can as a flamethrower!
I just finished reading an excellent book..."No True Glory", it is about the battle for Fallujah, the whole process both political and military that led up to it, and the great, sad and humorous stories of our Marines in the city.
In one scene, the Marines asked for flamethrowers and were turned down by the generals in charge. You can imagine, with the hubub from shooting an injured insurgent, what would have happened if there had been pictures of the insurgents being burned alive by Marines with flamethrowers.
There was a story about a bunch of Marines who had one of their favorite buddies killed by a bunch of insurgents holed up in a house. The Marines tried for a while to attack them with no success, then someone noticed there was a big fuel tank with cooking or heating oil on the roof.
They fired a round into it, let it all drain down into the house, then threw in a flare to ignite it. As I recall, the author said "The Marines smoked cigarettes and listened impassively to the screams from the insurgents within..."
I'll bet it was impassive. I wouldn't want to have to fight those Marines after I killed one of their buddies.