Ok say you by yourself in DM "Deadmines" or sumtin and your barely getting along in there because your a little low to do it by yourself and you cant handle the pats "patrol" ok what you do is go into stealth and use Sap on one of them jack there money or whatever then when u do Sap the other one and the one that was sap'd first will start walking ahead.
PERFECT CHANCE
Then Kill The Sap'd one and wait for other pat to come back.