I agree. The knee jerk reaction of many otherwise highly educated corporate users when there is a UI issue: "Oh, I must be doing something wrong." So often, something is wrong on the server that is causing horrible lag or weird errors.
It is more amazing when you meet a very resilient user (think: senior sales staff -- they'll do /anything/ for a sales commission!). They just assume this is normal operating procedure. Only when things are horrible, do they ask for help. Then, you stand behind their desk and watch in horror at all the bugs they workaround (many times per hour!) in your app, but never report... Hat tip to these amazing users!