Playing Pranks

yesterday me and another guy at work played a trick on one of our coworkers .. first the other guy called him and pretended to be someone calling from one of our competitors .. wanting to do an interview at 10:30 .. then i called .. literally a few minutes later .. same thing .. only i told him to come at 8 .. and he bought it twice .. poor guy woke up early to go to the interview at 8 .. when he got there and tried to call my number .. my mobile was off .. so he left .. i know this because he actually came and told me the story .. and i pretended to be interested .. but we kept an eye on him and we noticed that he didn't go to the 10:30 appointment .. so he's not a complete idiot.