The Nums Lock doesn't work

I just had to post this:

Me: IT how can I help you?
Idiot on Phone: The Nums Lock won't work.
Me: You've tried using the number pad?
Idiot: It doesn't work, the light on the keyboard doesn't come on.
Me: And the number pad isn't working?
Idiot: It's not working!
Me: Okay I'll come have a look.

(A minute or two passes as I hobble my way to the idiot, who is sitting at their desk, arms folded refusing to continue work until their problem is solved.)

Idiot in Person: You took your time.
Me: Galiantly refrains from picking up the keyboard and smashing it over their head.

Me: Uses number pad with no difficulty.
Idiot: Agog

Me: You didn't try the number pad did you?
Idiot: Yes... I did... It wasn't working.
Me: Well, it's working now.
Idiot: But the light isn't on.
Me: Shuts the window blinds near idiot.
Idiot: The lights are back on now it's alright.

Me: Shakes head and hobbles away.