Hay-Balls Roll & Roll

Am watching Troy at present moment, and just have to comment about the scene where the Trojans attacked the Greeks. That was some really smart attacking tactic. Taking advantage of the fact that they are at higher ground than the Greeks, the Trojans shot some firey arrows down to the sand below, and tossed down some hay-balls or whatever balls those are. Hay-or-whatever-balls roll and roll, catches fire upon reaching the spot where the arrows were shot, and continued to roll, roll and roll down to burn the hell out of the Greeks' camp. Poor Greeks in the movie probably don't even know what hit them.

Pretty smart, eh?