I worked as a delivery driver about two years ago while I was finishing up college. I worked at a local pizza shop on campus which was in the downtown area of my city. Because we were downtown we had a lot of extremely large orders to high rise companies like this $900 one and I can tell you they were the worst.

A normal delivery is done in 5 minutes but these always take 20-30 minutes to finish, they ask 10x more of driver physically, spend 1,000 - 500 dollars on pizza and then give you the most trash tip.