People who expect the vendor (me) to do their job for them. I just got off the phone with a site that wanted me to go though their packing slips for the servers they ordered and tell them which data center to send them too... I created a detailed spec, several diagrams showing you how to deploy, and spelled out all of the technical requirements in painstaking detail for you. You fucking ordered them, they're your servers, you figure out where you need to put them. Lazy bastards.