I think a lot of departments give the MMPI with a couple of other tests. They are some how evaluated and that determines whether or not you work there. If you fail an MMPI it doesn't mean your certified nuts. I had a guy in my academy who bombed it while in the hiring phase with an agency but passed it with another. It all depends on what the department is looking for. I remember him saying he answered the questions the same. Here's how I answered a few of the questions:
1. Do you love your Mom? Yes.
2. Do you play with fire? No.
3. Are you attracted to animals? No.
4. Do you hear voices in your head? No.
etc. etc.
:D
"Never sweat the petty things...instead, pet the sweaty things." - Grandpa