One of my father's quips, "There are only two kinds of jobs: those where everyone is happy to see you, and those where everyone is mad to see you. Be the UPS delivery person, not the process server."
That was from a different time, right? By now, package delivery people also has a pretty bad reputation due to the profit pressures exerted on them by capitalists. I don't really feel happy seeing a delivery guy. If anything, I feel sorry for them.