Mr. Magorium's Wonder Emporium2007

Mr. Magorium:
Name the Fibonacci series from its eleventh to its sixteenth.

Henry:
Umm... 89, 144, 233, 377, 610?

Mr. Magorium:
Perfect. Number four, do we really need it?

Henry:
If you like squares - you do.

Mr. Magorium:
Oh, I like squares. Good. Now, the hot dog, the hot dog/bun ratio, why for the love of mustard are there never enough buns?

Henry:
Extra hot dogs.

Mr. Magorium:
Yes, but why?

Henry:
In case you drop a couple.

Mr. Magorium:
What kind of insufferable fool drops a hot dog?

Henry:
Anything can happen, sir.

Mr. Magorium:
Anything can happen. How absolutely true. You're exactly the mutant I'm looking for! You're hired.