CSI: Crime Scene Investigation, Season 1

Grissom:
[swipes a yellow substance that has dropped on the leg of a shopping cart and licks it]

Brass:
Oh, that's sanitary.

Grissom:
Mustard. [Glances behind, noticing a bunch of jars of mustard on the shelf] Did you have any clean-ups in this aisle today?

Store manager:
Yeah, as a matter of fact, we did.

Grissom:
Life holds no surprises. [Takes a jar of mustard from the shelf, checks the price and hands two dollars to the store manager] $1.98 for the mustard, plus my two cents. [Takes the jar and drops it at Brass' feet. The jar shatters, splattering mustard on Brass' shoes and pants]

Brass:
What are you doing?!

Grissom:
Now, where do you go?