There is a remarkable similarity between that picture and the avatar in your signature image.

I honestly never think of that word in any context. I'm one that categorizes folks as those with whom I would associate with and those I wouldn't, and the harshest thing I may think or say is calling someone a "jerk". Unless they're driving a car, then I ramp up to "prick" on the rare occasion where it's applicable.

People that, upon learning what you do, immidiately need to give their opinion on how you could do better at it, or have some vaguely-negative thing that happened with someone else who does the same thing at some point and want you to tell them they were in the right.

Teacher? They need to give their opinion on education in the first 5 minutes you meet them

Plumber? They want to tell you how many joints they sweated in the last year.

Grocery store worker? They need to tell you how dissatisfied they are with grocery store service at soem chain that you never heard of before.

Double points if they have no experience whatsoever with what you do:

i.e. You're a mechanic and they've never put together so much as a LEGO set

Triple points if they think their experience is irrelevant or out-of date but they don't grasp this. Quadruple if its both!

i.e. You just got comissioned int he Navy as a submariner officer, and they've got advice for you based on their experience as an infantryman in the Army in the Korean War.

Speech that is punctuated with fake laughter the way some people online seem incapable of typing a sentence without tacking "LOL" on the end of it.