From "Leave It to Beaver: Beaver Goes in Business (#4.36)"
[Eddie has been giving Gilbert and Beaver "the business" about how to trick people into giving them money
] Eddie, what did you have to go and give 'em a big deal like that for?
Big deal? Look, Orville, I just gave those kids the benefit of my knowledge in the business world, and you're knockin' it.
Why don't you just pick on somebody your own size and give 'em the business?
On account of I need these teeth for eatin'.