If you're an I&O professional, what comes to mind when you say "end user"? If you're like most of us, your mind has a conjured-up impression of a cosmically clueless person who actually gave you a hard time once, and the picture is now your mind's own avatar for everyone you support. It's not usually a positive image, is it? I used to picture a middle-aged, BMW-driving executive with his hair parted on one side wearing an LL Bean sweater, probably an Ivy-league grad, who couldn't be bothered to actually take responsibility for his own personal computing destiny…he always had servants to take care of trivialities…and hence he was ruining my day with his incompetence. Let's call him Ascot Rothschild III.
An image like that is a powerful thing, and the painful memory of this individual's willful, arrogant ignorance then pervades our future thinking about what we're up against when we set IT policy like BYOC. Ascot becomes the poster child - in our minds anyway - for every garden-variety corporate doofus that we'll have to deal with if we give people any more rope than we already do. They also give us plenty of reasons to take more rope away. In my case, I used to sit on a helpdesk for Remedy customers, and my team had a collection of "special" customers we wondered how they managed to get dressed and find their car keys in the morning. As I later designed Remedy and Peregrine applications, I did so with these "edge cases" in mind.