Here are my thoughts - I have made a number of mistakes ttrading - BOUGHt when I thought I was selling on numerous occassions. I have bought the wrong stock by entering the wrong symbol. I have bought $30,000 of a OTCBB sub penny when I thought Iw as buying $3,000. I have bought stocks misinterpretting the x date UNQT just last month. I have also not read NRs on CH 11.
NOT ONCE was I ever allowed to wash my trades - I was 1000% reposposible for each and every one of those mistakes. AND if for some reason I could deliver my part of the contract and in most cases that was the MONEY 0 MY broker was then on the hook for it.