Margin call notification came in at 9:15, I was presenting a quarterly deck, phone on silent. By the time I checked at 10:30, Schwab had already sold the position at the worst possible print of the day. Lost about $9k more than I would have if I'd been able to manage it myself. Filed a complaint, got the standard "market volatility, per your margin agreement" response. Going back to cash-only accounts. Said that after the last one too, still haven't done it.