I don't believe the abrasions were from a vehicle, however you are spot on to the nature, dimensions and function of the mechanisms behind her raw hands.
I was told target practice and writing would help with EG's sort, and look where it got me. Whichever therapeutic passtime you pick, ensure it's one you wish to perfect..
I've said that in family court, parents may be required to undergo psych evals BEFORE being allowed to visit or regain custody of children. This is not done with all families; it's a measure taken to resolve protracted, ugly entanglements in which one or more parent is mired in obvious yet unaddressed pathological issues.
Anger management classes regarding EG's abuse with her young sons support the diagnosis having occurred.
Not that anyone was seeking a cause for her 'anger', but that the court held concern for her children's safety and simply required her to attend the required appointment to address underlying cause of her dysfunctional behaviour (to remedy & therefore resolve the family case).
All attendees of subsequent family court hearings would have known EG attended; and those privy to particulars- the psychiatrist's formal opinion.
Something I wish to clear about the nature of BP medications is their effects and 'underground' demand for them; many qualifying antidepressants are known to cause a good deal of unwanted side effects loadies find unattractive. Younger, inexperienced, experimental types may enjoy them from time to time (think party/event/work, not lifestyle/recreation).
Heavy neuroleptics may be sought, yet again not the hottest market out there.
The anti-anxiety class (if it may be called) is where one might see consistent interest in aftermarket drug trade.
As an asides, bipolar sufferers are prone to fits and starts from other far more easily obtained substances such as over the counter cold meds, histamines and steroids. Who knows why, it's just never a good story.