Social skills and body language; I have very severe Asperger's Syndrome (and if you're gonna try and call me out, I have a legitimate diagnosis so you can kindly stop projecting and fuck off).
I cannot dissent either; I've been screamed at and generally made to feel utterly worthless to the point where obedience is all I know (thanks, family!). And indeed, I've been a selective mute for well over a year now because of it.
Writing great big walls of text; I lost this ability over 10 years ago. These days, I only type short bursts of text.
Then there's my memory; it's not that it's awful, it's that it works too well; I can remember most moments where I've been wrong, screamed at or humiliated. That stuff, I generally won't forget any time soon...