Buffy:  Oh! Owen! Hi!

Giles:  What do you want?

Owen:  A book?

Giles:  Oh!

Buffy:  See, this is a school, and we have students, and they check out books, and then they learn things.

Giles:  I was beginning to suspect that was a myth.

Buffy the Vampire Slayer, Season 1: Episode 5 – “Never Kill a Boy on the First Date”