Q: How many times do you have to tell your users to reboot after they have
something weird happen to their PC before they finally start trying that
first before asking for help?

A: Infinity. They will never start rebooting on their own and will always
ask for help with every obscure, one-time problem they ever see. (Or
there's the few notable exceptions of "I tried rebooting five times before
calling you" not realizing that if one reboot doesn't fix things, chances
are five won't, either.)

"Those of you who think you know everything are annoying to those of us who do."