I have a few stories of my own back in those pizza deliving days.
1. A roach hotel I would deliver too and the lady at the door was so high on drugs she gave me a huge tip for a $10.00 order. (that was sweet!)
2. There is a road near where the store was and it cuts off and the street you need to turn on is on another part of town, it's hard to figure out because the addresses seem like the street is totally straight through, there is a patch of grass and trees where the road cuts off, thought I could jump it with my Festiva.. lol. Turns out it rained that day and my car was stuck in the mud, I had to walk to the nearest house (1 a.m. and not in the best parts of town) I found a guy who had a car and I asked him to take me to where I work and I would give him a bit of money to thank him for his trouble. He kept feeling me up the whole way back and I was lucky I wasn't raped at that point.
3. I am bad at counting change and a few customers would complain it took me too long. One guy said to me "did you graduate High School? you suck at counting change" and slammed the door in my face, I just kept thinking to myself, hey at least his pizza isn't cold!
4. A few times I had to deliver to hotels, I was asked to deliver 10 pizzas, pops and some bread, when I got there, the manager was in the room I was told to go, she kicked people out, there had to be at least 20 people in this room. I was told "since my friends left and were kicked out, I don't want the pizza anymore" so I had to take this whole order back to the store. The workers ate it and I didn't starve for a few weeks.. lol.
I'm sure I can think of more, but it seems as though I wrote quite a bit and don't want to bore anyone.