Story reporting should be able to distinguish between error conditions and test failures

Integration tests aimed at testing things like performance or security may encounter error conditions in the test which should be recorded as test error and not test failures.
For example, in order to test a security feature my test may have to login to the app and then perform an operation. If login fails however, then that's an error in the test, it doesn't mean that my application has failed the security test, it means the security test has failed to run.

It would be useful to have JBehave handle specific exception types differently, so that the report can clearly distinguish between test failures and test errors.