Quote from TSGannGalt:
Give me an example of someone who is in denial with trading.
Quote from OddTrader:
If a trader's ego often prevents admitting wrong trades, he'll probably go broke one day!
Or
A trader keeps trading a system with hidden risks that he knows will make him broke due to his own mistakes one day.
Or
A trader knows he should have quitted a losing trade by now, but he still holds on.