The guy next to me hung up and started commenting about how awful sales people are... . How they don’t know anything, but they make all the money . . . etc. etc. etc.

Being an account executive (aka sales person), I will admit that my immediate thought was "HEY! You have no idea what it’s like. . . . on my end. . . from my side!" 

As I was walking through the terminal, I started thinking from another point of view . . .  there’s a reason he feels this way – a way he’s been treated that makes him say “this is why I drink” while shaking his head - he was made to feel "less".  

That's a terrible feeling.  Let's try not to make other people feel it!