Is it hygienically appropriate to floss in the library?

Like, at a table while reading the newspaper?

No?

I didn't think so either. I don't want to accidently touch one of your spittle flecks that went flying every which way.

No wonder there's so much crime out there. People have a really hard time understand the difference between legal and illegal!

Patron: You got a Green Lantern Dvd?
Librarian: No, that's still in theaters.
Patron: Not even a bootleg copy?
Librarian: Sir, those are illegal.
Patron: Okay, I tell you what. I get a bootleg copy and I make a bunch of copies and I give them to the library!   

I've had to ask people to keep their voices down, especially on their cell phones, and I've had to ask people to turn their MP3 players down because they're so loud that I can hear them, but until yesterday, I'd never had to ask someone to turn off their white noise machine. The ocean sounds were lovely, but they were bothering other patrons.

I'd feel threatened if I weren't laughing so hard

Patron: If you cut your hair again, I'm gonna break your face!
Librarian: Wha...what?
Patron: I really like slim jims. Don't cut your hair anymore, my Momma corn-row it for you. 

That last part was rapped, by the way.