Is it okay to remind someone they shouldn't ask you questions they don't want the answers to?
Staff: My account is locked out.
Me: No problem! *Clicky*Clicky* Ok, you're good to go now.
Staff: But it locked me out on the first login attempt.
Staff: Isn't it supposed to give you a few tries before it locks you out?
Me: Yes, five.
Staff: But it only gave me one!
Staff: Why would it do that? Is your server broken?
Me: Nope! It locked because there were five unsuccessful login attempts.
Staff: No there weren't!
Staff: So what else could cause this?
Me: Maybe you locked it yesterday and didn't notice until this morning, so on your first attempt this morning, you got the account locked message.
Staff: That didn't happen!
Staff: *Walks away mumbling*
If you're going to be offended by any hint of your actions causing an undesired consequence, then I don't know what to tell you. I don't care if you lock your account - it's a two second fix, and I've done it myself. There's no shame. So don't argue!