So I can assume that if you go to a home show in your home town and a fellow cleaner recognizes and comes up to you and says "hey can I buy a zipper from you" you will decline the sale because you haven't paid the entrance fee to the home show? I doubt it.
Using that scenario of the home show, lets say you bought a booth. You invested 3k in a nice display, another 1k in literature. You commit to 3 days at the show and pay for additional sales staff.
During the show you notice one of your competitors talking to attendees. He looks to be making sales on the floor despite having no skin in the game (but his time).
As you walk out after standing for 3 days you hear your competitor telling someone how busy he is going to be from all the the cleaning jobs he sold over the 3 days.
This is the perspective Erik is coming from. Did Cobb go there with that intent??? Only Larry would know. Whether he did or whether he didn't it, wouldn't make it any less aggravating.