About the pizza thing...
In the thread asking about the pizza "con", Mr. St. Aubin responded:
"If you order a pizza from Pizza Place A..........and that pizza had mushrooms and olives on it and you get it sent to your place and eat it. Then you call two days later and say that you had a pizza show up to your place that had JUST THAT, olives and mushrooms....but that that was not what you asked for....they WILL INDEED look at the order and see that that is what it says....then they will ask what it is that you wanted on there. After which, you will tell them that you wanted pepperoni and sausage...they will send it to you for FREE....that is a CON, because it is FREE"
I worked in a pizza place when I was in High School. People call in all the time trying to scam free pizzas. Sometimes they succeed but usually they don't. This technique, however, would never work anywhere. If someone was going to report a mistake on there pizza like that, they would do it right away. If someone called in two days later, or one day later for that matter, nobody would give them anything. If you did tell them that, they would just say "Sorry, we'll get this one right." If you told them about the mistake and also said you should get a free pizza they would know it was a scam.
By the way, if you ever call a food place and you tell them they have to give you something for free (because something was late or there was a mistake, etc...) and they actually do give you something for free, don't eat it. They've done something to it that you probably don't want to know about.