Consistency/data/entities/animals/drunk/scavenger_poison.xml

<Entity name="$animal_scavenger_poison" >
  	<Base file="data/entities/animals/scavenger_poison.xml" include_children="1" />
	<Entity>
  		<Base file="data/entities/misc/effect_drunk_forever.xml" include_children="1" />
  	</Entity>
</Entity>