To find if she was a psycho (pulling a weapon on people)? Or to find if she is a sloppy person who only does a half-assed job (the unloaded weapon)?
Most people I know who have taken these tests go in with the attitude of "how would a person this company wants answer" not "how would I answer".
A friend worked at a small company for a few years when the CEO decided that everyone needed to take a personality test. He and his office parter told the boss they wouldn't take them because they thought the test was a waste of time and were far too busy with real work. The test quickly disappeared.
Would have saved a call to 911.
Some of you people are talking out of your a$$es.
You don't know a thing about personality tests.
There are some very good ones out there. And they can make great predictors as to whether or not a candidate will be successful in a particular job in a particular company.
You don't FAIL these tests. They look at your results and compare them to the results of successful employees in the company.
Some of you may have had the 'pleasure' of working for a company where you, your personal style, your working style just didn't fit the culture. It's not a failure, and it doens't mean that there's anything wrong with you. You just don't fit.
That it was the selection process should be about. Finding out if you and the company are a match.