I think it's a useful exercise to remove the Internet from the equation here. This is equivalent to grabbing a megaphone and letting all of your customers know

I think it's a useful exercise to remove the Internet from the equation here. This is equivalent to grabbing a megaphone and letting all of your customers know "Hey, look at Glass Lewis & Co! They didn't tip us for a big order!" If I'm a customer and I hear this, this is what I could be thinking: 1. Jeez, that's not very nice. 2. Wait, I don't tip when I order from any food trucks. Am I gonna get called out tomorrow for it? 3. I'm going to start bringing my lunch. Especially since this is an industry where the cost of replacing a PTE is especially low, it doesn't seem like the owner did anything wrong besides protect his revenue. He didn't even try and coax an apology out of the guy.