dialogue: Dave: But how did you know I was working for WebTracker?
  Joao: When I was in LA, I met the WebTracker sales rep.
  Dave: He couldn't have told you. Only a few people at WebTracker know about me.
  Joao: The sales rep had a green note pad just like yours. He said everybody at WebTracker used them.
  Dave: I can't believe it. I can't believe I fell into your trap.
  Joao: We both may be snakes, Dave, but I'm just better at it. Among the snakes, I'm the sneakiest.
summary: Dave feels surprised that Joao can infer he was working for WebTracker work.