...And why would anyone risk everything (in this case $400), on something you never ever tried before?! This is an insane move... and you know you need money for other things, but you decided to go all-in with 0 knowledge about what you are doing... and now the time for crying has come! ..
He could just as well take his money to the casino and lose it. So the point here is not in trade, but in the person himself and his attitude to earnings. Usually such people come back again and to lose their money again, since they do not analyze their losses.