When the market makes a huge move such as in the fcpo futures today, many longs were caught off balance... the temptation would be to continue to add to the 'gamble' by averaging or 'holding on and hope the market comes back'.... It is good to remember to read this "Don't lose your shirt" (babypips.com)

"The 2% rule will protect you from being eaten by the sharks, while the 6% rule will protect you from the piranha frenzy" Dr Alexander Elder