QueryParser Exception Handling Problem

According to the following link:

http://ferret.davebalmain.com/api/classes/Ferret/QueryParser.html

:handle_parser_errors => true is enabled by default and seems to be in
acts_as_ferret in class_methods.rb of the plugin. However, when I pass a
special character as a query (e.g., !, -, <, >, etc) it throws an error
and pukes.

-- snip --
Error occured in src/q_parser.y:279 - yyerror
  couldn't parse query ``<script>''. Error message  was syntax error
-- end snip --

Anyone know what's going on here?

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