Do you work here?

I was sitting behind the desk, reading a work email. A patron comes to the desk and asks:

Patron: Hi, do you work here?
Me: Yes (screaming in my head: Of course! I am sitting behind the desk!)
Patron: Where are the card catalogs?
Me: Uh! We don't use those anymore.
Patron: Where do I search for books then?
Me: I will show you how to use our online catalog.
Patron: Alright! (sigh).

But still a sport and comes with me to the computer and spends 15 minutes finding his way around. I thought that was nice.

Do I need a card?

Patron: Do I need a library card to take stuff out of the library?

Me: Yes.

Patron: It's probably a dumb question eh?

Me: No. Not at all.

Patron: I can't believe I have to sign up for a card. Can I take it just once without a card?

Me: No. You cannot.

Patron: Urgh....