Play the game untilt you're forced to fight a thief in order to get a number of items contained within his room. Fighting the thief is pretty difficult unless you have the stiletto which he holds, assuming you can even get it. This glitch allows you to get the stiletto early. In the room below the thief's, enter the room above and type and enter "Get stiletto". If you fail, go back down, then type and enter "G". In doing so, you will get the stiletto instantly, despite the thief not being in the room to steal the stiletto from: now you can just go back up and kill the thief with the stiletto.