I don't believe in such an animal. I've never seen one anywhere but the anecdotes of questionable sources.
As far as I'm concerned, they are a fairy tale the greasy, showerless, dateless, socially outcast, inferiority obsessed, geeks of the seventies invented to justify their pathological need to injurer "cool" people.
From there, it just became accepted lore as such people became successes and, for the most part, got their $h!t together.
I’ve met some that were practically frothing.
*Once*, I went to Sunset Electronics in PA to look at the iMacs [which crashed every time I touched them] and the salesman was livid when I decided Apple just wasn’t my thing.
Got very insulting.
Never went back.