[cheebacheeba]

I don't know if you'd consider these personality traits as such.

The one-up, the friend that will always tell you bullshit stories...or if you've done something, they've done it while flying, and on fire.

People that either take their meds or actually go quite mental, not just eccentric but hearing voices/acting irrationally and potentially a danger to themselves or others...there's those that in lucid/normal states are totally aware of their condition and know what'll happen if they don't take care to stick to their regime, and periodically just decide they don't give a shit anymore.
It's like (though maybe not as bad) as a person getting heart surgery and told they need to stop drinking/smoking/eating fatty foods, and continue on.

"Morning people". I don't CARE how or why you're so chipper in the morning, I'm not going to be, and I don't care about that either...don't expect me to reflect your unfounded enthusiasm.

Law driven anti-weed conformists.
If there's no other grounds for their take than "it's bad because it's illegal", they just show themselves to be a little mindless really.