/**
@fn FLAG_HITBACK
@section Use
<table>
	<tr>
		<th>Type(s)</th>
		<th>Description</th>
	</tr>	<tr>
		<td>
@ref page_type_212, @ref page_type_28
		</td><td>    Monsters with &lt;hitback&gt; enabled hurt the attacker in proportion
    to the amount of damage the *attacker* inflicted. This damage
    is additional to the regular melee damage of the monster.
    As far as I know, hitback uses acid attacktype, and it only takes
    effect if the monster actually has acid attacktype at it's disposal.
    Acid spheres for example use this feature.</td>
	</tr>

*/