At that point she offered to go to a gas station to get change for the guest's $100 bill. He said yes. She left then came back. When she returned with the change, she came through our lobby. At that point there were 2 teenage boys (Looked around 13 or 14) getting drinks and using my stapler. She saw them as our lobby isn't very large.
A few moments later, she came busting through the lobby doors loudly saying, "1 fucking dollar. Are you fucking kidding me? 1 fucking dollar?!" (I assume that the guest had only given her $1 as a tip and she expected more. She was talking to herself, but loudly and knew we could hear)
Both teenage boy's heads whipped around and looked at me like, "What the heck just happened?" I could tell that they aren't used to that kind of language. I apologized profusely for her actions. They said that she didn't sound like she deserved a tip with talk like that, especially in front of guests. I contemplated calling Pizza Hut, but decided against it. I didn't want to get crap started since they are the only place who delivers to us and I didn't want to get her fired or anything.
About an hour later the same boys came down asking if anyone else delivered. I apologized and said they are the only location that delivers to us. They took the number and said they hoped she wasn't the one delivering. Fortunately she wasn't. It was a really nice guy who delivers all of the time. After he delivered their pizza I explained the whole thing to him. I told him that I didn't want to get her into trouble and that he didn't have to say anything at all, but I thought he should know.
I understand her frustrations as I believe the guest should have tipped more. But as the pizza guy explained that guests aren't required to give them tips. That's their job. He also said that the guest may have thought that the delivery fee went to the drivers. It doesn't. But most people think it does and they aren't allowed to tell the guest unless the guest specifically asks. Either way, he said her behavior was out of line and he knew exactly who I was talking about (I assume her personality was that way by his tone)
He said he would be saying something to the manager about her attitude. He said he thought something was up when she didn't want to deliver to us and had asked him to. Again, I told him he didn't have to say anything. I wasn't out to get her into trouble. But he said it needed to be done because she was probably acting this way in front of other people she had delivered to.