What's the difference between an enterprise software salesperson and a used car dealer?
Q: What's the difference between an enterprise software salesperson and a used car dealer?
A: The used car dealer knows when he's lying.
This is a programming joke, and also an insult. The insult is directed at both used car dealers and enterprise software salespeople. The used car dealers are said to be liars, and the enterprise software salespeople are said to be unintentional liars, and also to not understand the software that they are selling.
Both of these categories of people are not very respected in american society, and both are believed to sell products that do not work as intended. That being said, the brunt of the attack seems to be directed toward the enterprise software salespeople, because they are being called both liars and stupid.