Players wielding a lance while riding will "joust" monsters
they attack.
Note that monsters don't get pushed into inaccessable tiles such
as walls, doors, iron bars, water, or lava; they stay at the edge.
Further refinements are possible for these cases.
Implement a patch which <Someone> posted on the newsgroup back in September:
"If I had my druthers, daggers would be chosen over other
weapons if there's no missiles or suitable ammo available, and weapons
not designed for throwing wouldn't be chosen at all."
