Mr Burns and Smithers on the bike

From 22 Short Films About Springfield:

Mr. Burns: Smithers? What's the meaning of this slacking off?
Smithers: Uh, there's a bee in my eye, sir.

Mr. Burns: And...

Smithers: Uh, I'm allergic to bee stings. They cause me to uh... die.

Mr. Burns: But we're running out of forward momentum!

Smithers: Um, perhaps you could pedal for just a little while, sir?

Mr. Burns: Quite impossible. I could try to bat him off if you like.

It seems like Smithers got excited for a second when Mr Burns was doing that!