So you think you know restaurant edict but have never worked in the service industry? HA! Don't make us laugh. You might know the basics, but there are so many things that can mark you as a crappy customer. The number one thing servers are currently discussing on Reddit? Complaining about free things. So you got a free basket of chips with salsa. Okay, so? You say, “thank you so much!” and move on. You do not complain about the chips being too salty, like the server can even fix that. You canno…