Two in one.
As for what gets my gears grinding...
When people write mental disorders incorrectly. I'll tell you this now, schizophrenia isn't hearing voices, sitting down and having conversations with them while you drink fucking tea. Personality disorders ≠ antisocial. Someone classed as a sociopath isn't
always going to be violent, nor are they
always going to be killers. But that's the thing I have a problem with the most, people making mental illness the reason why a character is a killer. Let's get this fucking straight, people with mental disorders can be killers, but mental disorders does not
make us killers. We are
not IN-FUCKING-HUMAN!
Another thing is applying mental disorders for funsies! Thinking they make a character more cool, more attractive by applying that
angst!...Just stop, just...no. Realize there are real people out there who live with this shit. If anything the disorders should be to make your character appear more
human, more
realistic. Not anything else.
Though this is a topic for another day, but I hope atleast one person can take from this. Research what you're writing, and write what you know